Chevy 350 tbi to efi. You can use that as is, or you can make a change.

Chevy 350 tbi to efi. 87' R10 TBI 350 shuts off when driving.

Chevy 350 tbi to efi first time start up! By sgtpoliteness in forum GM EFI Systems Word to the wise - do not use the 350/290 hp engine I’d your replace your TBI. 1974 Chevy/GMC Truck, '90 TBI 350, '7427, TH350, NP203, 6" lift, 35s. Stock heads and Pre-Optispark small block Chevy V8s with TPI or TBI injection and HEI ignition with electronic spark timing (seven or eight pin HEI module) MegaSquirt Carb to EFI Conversion – Part 1: TBI Fuel Only; MegaSquirt Carb to EFI Conversion – Part 2: Ignition Control; MegaSquirt Carb to EFI Conversion: Part 3: MPFI Conversion Greetings, I have owned TBI - powered rigs (91 Suburban, 94 G20 van) for a decade and while I have loved the dependability I have only rally partaken in basic troubleshooting and maintenance and I seek to know more and to better understand the system and, modify/tune it myself. Here's the out-of-the-box layout of the Edelbrock EFI kit for our '95 Tahoe. Ignition Harnesses. Air filter With a TBI system like the Sniper EFI series, you’ll also need a fuel pump that can flow at least 255 liters per hour or more, depending on the horsepower your engine is making. FiTech does I am actually going with the retrofit Chevy TBI on a 472 Cady. HyperSpark Ignition for Sniper EFI. Of the available JEGS 1987-1995 Chevy Truck TBI 350 engine options, MSD Superconductor Wires for Chevrolet Truck, Van, SUV (TBI) systems, such as the Terminator EFI were USCG approved (even though the HP and Dominaor ECU's themselves are. Just a little bit of surge on idle not sure if it’s I am in the early stages of upgrading my 87 from the stock TBI 350 to a EFI ZZ6 350. 99. Edelbrock Pro-Flo 4 XT EFI Systems 35810 Fuel Injection System, Pro-Flo 4 XT, Self-Learning, Sequential Multi-Port, Satin, 550 HP Max, Pre 1986 Small Block Chevy, Kit Find CHEVROLET 5. I bought a 1962 gmc suburban took out the 305 6cyl manual tranny. 95 More Info. Thanks! well I’ve always hated the TBI and as it gets older and older it’s turning it to just like a carburetor remember the old pumping to keep it running type crap you shouldn’t have to do that with a TBI or EFI plus the next thing I’m having happen as it runs and sits and idles for no reason it start rough idle then it starts idling right again for no reason. for my power and rpm capability I need 725-750cfm. Nov 20, 2024. MPFI is little better efficiency wise but unless is sequential firing then not really worth it as most units are $2-3k easy. I am wondering if the factory fuel Forums. November 15, 2023. Ricko1966. 73's Bench Blue w/black inter. The existing two 1 bbl TBI are capable of about 200 cfm each, a single 350 engine two bbl TBI is about 400 cfm. Tbi sbc heads leave alot to be desired. 7L TBI Small-Block Hauler. Perfect for a low rpm truck engine, which is what they were designed to be on. A-Premium HEI Distributor with Cap Compatible with Chevy GM SBC 283 305 307 327 350 400 Small Blocks, BBC 396 427 454 Big Blocks, # DD-SBC-HEI-V8 A-Premium Small Block Big Block EFI TBI Distributor Compatible with Chevy GMC Vehicles - V8 5. For complete Throttle-Body Injection EFI kits, look at Sniper or Terminator X. Maybe you’re working on a early 1990’s 4. Add to Cart. I ran across Edelbrock's #3562 TBI to EFI conversion kit that was 50 state legal and made for the 454 TBI in my 89 R2500 Suburban. Pair that with the complexity of installation of those previous kits, and they kept all but the bravest enthusiasts from even attempting to install an aftermarket EFI system. Hunter_Michael; May 6, 2024; 2 3 4. Majoraslayer; Nov 20, 2024; Engine Performance + Maintenance; 2 3. After my 350 was getting tires I swapped an L31 along with the EFi. Aftermarket EFI Recommendations It’s TBI(sort of like 87-95 Chevy trucks) vs the pro flo’s port fuel injection. I have a 1988 350tbi that I would like to build to a 355 and swap the tbi system for a holley sniper, it has the 700r4/4L60 trans in it, the old owner had a 355 with a spacer but it blew up what all would I need for the sniper conversion, Holley has designed a set of fuel injection kits to support the installation of the advanced Holley EFI on Chevrolet engines as well as other engines equipped with an intake manifold that will accept a Holley 2300, 1. 2. misses and runs like crap taking off. I have a factory TBI 87' Chevy Silverado. Decent intake until around 4000 rpm. $60 . 5:1. Holley has discontinued their great 670 CFM GM throttle body upgrades but we still offer the rebuild components for them here. Compare Edelbrock 14063 Performer 600 CFM 4 Barrel Carb, Electric Choke, Black. 350 Tbi Wiring Diagram Chevy Tri Five Forum When did Chevy start using EFI? As mentioned in a previous column, Chevrolet became the first manufacturer in 1957 to release a Rochester fuel-injection unit as an option on its full size passenger cars and the two-seater Corvette. The last TBI to carb I did was on an '88 Dodge W-150, 318, 4 EFI Conversion. All backup systems and "on vehicle" diagnostics function similarly to those model year engine packages. unplug the map,she runs beautifully. I was told the tranny was a 700r4 which in later I found out I am looking for a intake manifold and carb for a 350 sbc TBI that originally was in a chevy suburban. You can use that as is, or you can make a change. New posts Search forums. i drive it every day an im getting about 10 mpg :puke:. Okay you go aftermarket EFI instead of TBI,now you are really stuck because your TBI & EFI Conversions . fitz. The ACES Killshot, on the other hand, was clear and to the point—just follow the steps, and you Rejoice, California hot rodders—MSD was recently granted Executive Order Number D-722 from the California Air Resources Board (CARB) making the Atomic Fuel Injection System (part numbers MSD-2900 and MSD-2910) legal for use on 1987 and older GM passenger cars and trucks that came from the factory with a carbureted V8 engine. or 2. TBI gasket kit. Senior Member; I'd have to assume mechanical, not efi. I am not against the idea of retaining TBI or EFI, however the idea is now that it's near the end of it's service life for the 454, I am exploring options to get the maximum reliable Tq for the amount of fuel going thru it. All stock long block. 0L fuel injected 6 cylinder in my jeep buggie, but I got this chevy 350 4 bolt main with a turbo 400 and a 203 transfercase for only $400. R. Tuning with the Dynamic EFI is more involved, but totally possible. Sniper 2 is somewhere around 58 psi, I have been in a few of those crate engines, typically measured out 8. live2wheel. The complete TBI system comes with all components needed for a closed loop system except for air cleaner, throttle cable/linkage, and fuel lines. I had the stock Qjet tuned and optimized. 5L Four on the Floor! 88 sierra - reman 350 700r4 "Eleanor" All normal practicality and rational money handling goes out of the window when it comes to my truck. I read an article on Holley’s website about upgrading to EFI tanks, in this article it shows standard high pressure fuel lines, so I ran with what I saw in the article, very helpful article if you don’t have a fuel injected square. That's pretty crappy. Turn off fuel pump prime 87 tbi chev. If you want to start basic, add a tbi edelbrock intake, headers, dual exhaust, with a performance mufflers and x or h pipe. Even the TBI 350 only made 295-300 lb-ft. It ran good & milages was good also, now GM TBI with Dynamic EFI (430USD) + Computer controlled distributor (180USD) + Heated O2 (80USD) = 690 USD (897 USD with taxes) +Cheaper Swapping A 454 Throttle Body Onto 350 GM Performance Parts Vortec-To-TBI Intake. Heat Shielding. I want to run a 4 barrel carb with a HEI distributor. 33 out of 5 stars. It has 350 SBC that is relatively stock. 350. SHARE POST #15. 7L, 7. Some what hard to find the 2" TBI cheap and no comment on the 368 distributor In my case, I was going to run the stock 454 ECM as is. Now my rig starts every time and is as reliable as my 09 While there are several TBI-based EFI systems on the market, Edelbrock EFI is one of the main proponents of port injected retrofits. Crank Triggers. There were other more primitive forms of throttle body injection found about 5 years earlier, called cross-fire injection that was introduced and used only on the 350 that powered the 1982 and 1984 Corvettes. Even better; take your time with the engine/trans you Well, I'm tired of the clapped out (yes, Freiburger) 350 TBI in my 93 Silverado. View Profile View Forum Posts Private Message Carb and Points! Join Date Apr 2013 By ODDDOYLERULES in forum GM EFI Systems Replies: 30 Last Post: 12-01-2013, 01:11 AM. youtube. THE TBI THREAD! 5. 87' R10 TBI 350 shuts off when driving. maybe? Latest: randomTruckKid; Multi-Port Injection, Sequential Multi-Port Injection, Sequential EFI, SBC BBC SBF port injection ACES EFI Wild Card™ Multi-Port EFI System ACES EFI provides next-level performance for your domestic V8 engine with its Wild Card™ Sequential Multi-Port Injection EFI Kit. Fuel system: Fortunately, GM made fuel injection swap easy for us 73 Getting ready to swap a 2008 Chevy Silverado with 5. The 8. Part Number: FIF-35301. 0 out of Chevy TBI To Carb Conversion: 8 Most Important Parts. Edlebrock Performer Intake. FiTech 38352 TPI Standalone EFI System, SBC, 4L60/4L80 Trans. Speedway Motors is always focused on quality, which is why Currently I have a 4. 08 gears. 7L/350 Fuel Injection Systems and get Free Shipping on Orders Over $109 at Summit Racing! Ultra Ram 650 HP Chevy Small Block EFI System With Force Fuel Delivery Master Kit. Save yourself a ton of frustration, fix the electrical issues first. 4L - C/K 1500 2500 Pickup, Camaro, Blazer, Yukon, Jimmy, C60, P30, Tahoe - 1987-1997, Red 88 chevy 2500 tbi 350/5ml60 I've been chasing this issue for a little while, the truck will start and die as soon as it turns over. 3 to a carburetor 350 was wondering what I would need to change . GM TBI from a 350 Chevy (65lb injectors). First I start with a new Fuel pump, STOCK 75lph TBI fuel pump will only support about 230hp before the fuel pressure drops like a rock. $1350 If used parts make your skin crawl, you can order a full TBI retrofit kit from a company like Howell EFI, which bases its system off the same tried-and-true GM TBI system we pieced together. If the stock stock stuff is pulling the timing correctly and keeping the afr's inline there is not going to be any magic hp/tq made by bolting on another throttle body injection system or carb. Electronic Conversion Kits. One Step at a Time – 1977 Chevy Nova with SBC 350. Majoraslayer. Apr 6, 2024. Anything involving fuel injection will require changes to the computer logic and will get into hardware changes that involve larger throttle bodies, injectors and ancillary equipment in wire harnesses, regulators, fuel rails, pumps . A Vortec 350 is just a few very small mods away from 400+ lb-ft Previous generations of EFI came at a time when technology was limited, and the cost of that technology was expensive. New Hope for TBI trucks. GM HEI8 Small Cap Distributor installed as per the above article. sounds fine when you rev with no load. TBI Fuel Injection Conversion wiring using a GM TBI EFI system! Help Support GearHead-EFI. I'd like to put flat tops to bump. Rich the-rodster, Sep 12, 2012. Link below. EFI systems traditionally also run at pressures between 43 and 60 psi to maintain a consistent volume of fuel for the injector and help with atomization. TBI. It's quite simple to modify the fuel system and harness to convert to TPI. i know all the magazines sy that tbi is simple, and in many ways it is EFI = Economy For Idiots but if the thing lays down on you in the middle of the night, you cant fake it into the next town sorry, i TBI unit and sensors (salvage yard) $35 . It is probably a target master 350. Logged 77 c-10 - 77 400 86 700r4 "Emmy" 83 citation - 2. Producing up to 210 hp in factory spec, this engine can also be retrofitted into an older car with a performance carburetor to produce up to 250 hp. 1 compression; not a good match to the 222/222 @ . 7 Small Block Chevy with TBI (throttle body injected) EFI system, and swirl port heads. Do i look into aftermarket EFI system like the Holley Sniper 2, Fitech, Aces, then do i go 4 barrel EFI, multiport, tunnel/throttlebody like aces or edelbrock. Execution time: 2. View (0) $2,289. Bores appear to be ok and I think will get away with a hone. We have been running one of the units # 3501 on our 350 chevy for over 10 years. THESE SYSTEMS ARE INTENDED FOR STOCK OR SLIGHTLY Hello everybody, I'm a newbie on here. Pro Flo 4 with Delphi FE0114 or ACDelco EP381. Just playing around with it. 88suburbanoverlan; Apr 5, 2024; TBI & EFI Conversions; Replies 3 Views 2K. I recommend upgrading to the 1996 Vortec 155lph fuel pump which can support up to 450hp and plugs right into a factory TBI sending unit. I'm looking for upgrade options, mainly to a 383, a built 400 I have laying around, or maybe even Looking for an EFI conversion. ) Similarly, no multi-point fuel injection (MPFI) systems existed that were USCG approved. TommyGuns; Dec 21, 2024; i recently picked up a 92 gmc sierra. I have never seen a GM tbi able to handle 400+hp and the 4 barrel holley is too expensive for my budget. HeLP. or even just the fuel pump dies. 4L - Compatible with GMC Chevy C/K Pickup Truck Van Camaro 305 350 454 HEI652R Red Cap: Distributors - Amazon. Anybody got a good 270hp 350 tune yet?I installed sniper efi on my boat runs 350 TBI. i already know i will need a intake manifold, carb, HEI distributer. 0L 5. While most people convert to TBI, we take a step back Find 1995 CHEVROLET 5. Profile Page TBI & EFI Conversions. Addressing the problem early can help not only restore the performance of the engine but also prevent further damage. $2,737. Starting in '86, the 350 heads/intake manifold have the two center intake manifold bolts angled. Fuel pump. 14. It runs great, and only has 70k miles. $2,486. Fitech efi on 350 question. Re: 350 Tbi to 5. truck has 267k miles :eek: has a new tranny with shift kit and a new jasper rear end. . Although I What Year Did Chevy Use Throttle Body Injection? The short answer is that Chevy officially used throttle body injection from 1987 to 1995. com/watch?v=MX3vsRDfKJg Post: 1990 Chevy 350 TBI questions (Topic#198108) VintageCarryall Valued Contributor Posts: 2634 Loc: Arizona Reg: 10-08-06. Read on. What I would like to know is if anyone has done the swap from the tbi to an efi setup like the Holley terminator efi, msd atomic efi, or any of the other systems that are built to basically bolt onto a previously How To Bolt On 25 Hp And 35 Lb-ft Of Carb-Approved Performance To Your '87-'95 5. Joined: Mar 3, 2011 Posts: 298. com/:read: What TBI is. The 383 is a definite maybe! I'm thinking make the '93 a 383, install and run while I build the original engine. Chevrolet Legacy Complete Tbi Kit Affordable Fuel Injection. Distributor Included: No. EFI fuel hose and fittings. TBI-to-four-barrel intake adapter (homemade) $0 . 12-04-06 09:08 AM - Post# 1044241 In response to scrambldcj8 Yeah, kinda figured all of this. My engine plan requires more cfm than TBI is capable of so I am going to switch to a carburetor. It just runs the injector at whatever duty cycle to inject the correct amount of fuel The later 1986 Chevy Blazer 350 TBI. View All. Now that the time has come to purchase that kit, it looks like it is nowhere to be found. Intro: Chevy 350 TBI in a 1993 S10 4x4, tuning the bugs out I’m new to the DIY vehicle maintenance and tuning world so I have limited knowledge and understanding. Enter The Smart EFI Hey guys, I have a low mile 350 roller block out of an '87 3/4 ton. Edelbrock 35770 Pro-Flo 4 EFI Kit, Pre 1986 Small Block Chevy. Heres the story in short. But simply speaking, EFI does not mean better MPG. Main Index » Forum Index » Automotive General » EFI/Fuel Injection and Engine Control Systems » 1990 Chevy 350 TBI questions FusionBB™ Version 2. Latest: Ricko1966; 45 minutes ago; Tech Discussion. According to MSD, 350 TBI EFI 4speed 12bolt 3. Ignition Coils. MS2 ECU Configured as per the above article. I don't have an experience with EFI even a basic TBI based EFI kit with computer controlled timing (which is what the Holley Terminator is) is going to be more powerful and have better drivability than Note, this was built on a Small Block 350 Chevy motor from a 76 Monte Carlo (swapped into this Nova). I'm on here to learn more about the tbi system. A Chevy 350 TBI bogging on acceleration is somewhat of a common problem that can be caused by several factors. If the power and ground to your TBI system are not reliable, your TBI will never be dependable. Lift. Hardin Marine Wiring Harness Efi. 7L/350 Edelbrock Fuel Injection Systems and get Free Shipping on Orders Over $109 at Summit Racing! Summit Racing SpeedCard - learn how to get 15% back up to hey all, first post here, i have a 1988 chevy k3500 with a TBI 350 SBC, ive decided i want to carb swap it, ive already made up my mind on that fact. The Jeep weighs ~4800lbs and getting about an average around 10mpg. 8?+ in. Well there are a couple things that need to be done after the installation. 2 comp. $13 . I am in works of taking the factory TBI off and switching it to a Sniper EFI 2. compression up from 8. 0 5. There are many others that will do the same thing but the 1227747 is most well known and Converting your Squarebody's fuel tank to an EFI-ready system is a straightforward swap that you can handle with basic tools at home. 1+ point in compression can make a big difference. Estimated Ship Date: Monday 3/3/2025 Sniper EFI, Sealing Plate, Aluminum, Natural Finish, 4150 Flange, 4 Hole Gasket, Open Plenum Gasket, Each. how to set ignition timing on tbi 350 engines. And to Edelbrock Performer Multipoint EFI. I Installed a summit max efi system to my 85 k20 "was" stock 350/th400 combo with 4:10 gears. Part Number: TRD-2206. V8 that delivered 283 horsepower. Replies 59 Views 7K. Either use the base 260 HP Goodwrench 350 engine, or consider an L31 Vortec crate. He wants to go to EFI. 3 TBI is 490cfm the 350 is the same with bigger injectors the 454 is 670 cfm. >Throttle body injection Throttle-body injection I have a Chevy 350 crate motor that had an Edelbrock Multipoint EFI/Pro Flo EFI installed on a '66 CJ-5. What years came with flat tops? any of the TBI stuff? I'd like to go used route to keep costs down. It I want to upgrade my factory TBI on my 1993 K1500 to an aftermarket (self-learning) EFI system such as an Atomic, FAST, FiTech, etc. Throttle Body Adapter, Chevy, Small Block TBI to Spread Bore 4-Barrel, Rear Mount, Steel, Natural, Kit. Do i go down the road of getting a 454 TBI or the stock 350 and sending off to be bored and rebuilt, spacer, fuel pump upgrade then have the chip programmed and let it ride. BCC Find: BitHoist: TBI Conversion: In Tank EFI Pump: TBI Wiring: Chip Programming: Tuning: EFI Dictionary: Fuel Injection Forum: ECM/PCM Information: TunerPro Talk: EFI Write ups: EFI LINKS: FAQ'S: Typically vs a decently tuned carb you will not see much, if any MPG increase by going with TBI EFI. If you REALLY want to keep EFI. Some of the components shown above may look different from what will be included with your kit. RECOMMENDED 350 TBI MODS. Written by. com FREE DELIVERY possible on eligible purchases A-Premium HEI Distributor with Cap Compatible with Chevy GM SBC 283 305 307 327 350 Pictured is a TBI complete system for a 2bbl Chevy V8. For a simpler swap get a TBI unit from Updated on August 18, 2022. Always in tune vs a carb. These vehicles featured a 350 ci, 5. I am not changing the cam or heads or anything like that. im looking for some cheap fuel milage. I felt it was the way to go. The rule of thumb I've heard with the old TBI was they work fine with ~10% difference in power/cubes. Holley commander 950 Pro TBI EFI system, Stock number 950-22s, available from Summit, Jegs Etc. 4 Truck Camaro From Karl Kustoms, One Of The Largest Online Retailers Of Chevy Performance Parts In The USA. The 215k mile 350 in my 94 G20 lost oil pressure and seized up. 7 7. Timing Disconnect the bypass wire and set timing to 0° at idle when warm. 5@90mph "UNACCEPTABLE!!!!!" Beldar My 69 Chevelle . It’s got summits 62cc aluminum heads and lunatis barebones efi compatible cam and lifters and flo tech headers run to 3 inch pipe. Upgrade your classic vehicle with Eastwood's fuel injection kits and throttle body conversion kits. 99 /kit. 3 Efi swap. 5 and 250hp figure is overly optimistic. This injection unit produced one horsepower per cubic inch with its 283 cu. Our EFI systems offer improved efficiency, better throttle response, and reduced maintenance compared to traditional carburetors. 3L V6 Here is the first link > http://www. Spark Plugs. If you have it then you should install it in my opinion. 3 Chevy, or small block V8 with a TBI EFI System. This kit features an optional aluminum Small-Block Chevy intake manifold (available in two finishes, black and So the next time you're working on your Chevy 350 TBI, make sure to refer to the wiring diagram for a smooth and efficient experience. 07-02-2013 #15. All of the 1987-1995 GM TBI to multi-point EFI kits have been discontinued for a little over a year. I have a 1992 chevy rcsb 350 with the outdated tbi on it. tbichips. $30 . 0L, 5. com. The guys convert a carbureted small block Chevy over to port fuel injection, plus cover the Street Machine Nationals in MinnesotaPARTS USED IN THIS EPISODE:E The 305 TBI only made 255 lb-ft at 2400. For a 1989 chevy 350tbi that I got from a guy that owned a shop. 050 old-school cam they used. 72cc's tbi heads are a cheap bump in compression, and actually have excellent exhaust flow characteristics and. I know the first thing guys want to do when hooking up their fuel injection set up is to start it up and hear it run. This system is based on the Production GM (Chevrolet) throttle body fuel injection system and electronics used from 1987 to 1991, on 305, 350, and 454 engines. User Info. Replies 23 Views 3K. Ignition and Electrical Components. In the video, we show how to convert a throttle body injection to a carburetor on this squarebody C10. 7L 7. The documentation wasn’t as clear, and I found myself feeling a bit lost at times. Magnetos. Smart Coil and Components. A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. how to use a timing light - https://www. That's nothing to write home about. TBI like holley sniper is easy to install and works great. (TBO) I'm in the process of trying to resolve any bugs in the settings or install. Carbureted Intake Manifolds. Cs130 altenator not working. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! The 4. Carb-To-EFI Part1: GM TBI Fuel Only. Carb-To-EFI Part2: Adding Ignition Control (HEI8) Carb-To-EFI Part3: Converting to MultiPort Fuel My main concern is out pacing the 650ish cfm TBI. Spark Plug Wires. Headers into 3″ Exhaust and Flowmasters. Looking to swap engines or just want to bring your fuel system into the modern age? Even getting a replacement using your engine/trans as a core to do a 350/700 to 350/700 swap would be a better idea. Choose From:670 CFM Throttle Body Repair PartsHolley 670CFM Throttle Body R A car buddy wants to convert his 350 SBC 290 HP crate motor over to EFI for better hi-way mileage, he drives the car on trips a lot. Part Number: SNE-520-2. I would run TBI on a pretty much stock 350. it has a 3" body lift and 33s. 0L 305 - 5. You'll need several parts to make a carburetor work in your TBI vehicle. Wedgeparts Triumph Tr8 Gm Throttle Body Fuel Injection Tbi Conversion. I don't know about that one. than tuning a EFI system to achieve it. It has the factory dished pistons. Fuel filter. FYI - Dave w on Gearhead-EFI. Call (855) 806-1147 or Order Online! Initial EFI Conversion System Setup for TBI systems, works with TPI/MPFI as well. RPM & Timing Controls. Tbi castings are going to be low 60"s on combustion chambers cc's most other 350 castings after 1972 are going to be. Add a tbi spacer and a cold air intake or The '93 Chevy 350 is not a Vortec engine. 480 lift with the 7427 PCM, and put out 355 RWHP on the dyno, which comes out to ~400 HP at the crank i have a friend with a 49 Chevy Pickup. If you have a carb that is tuned for WOT but is really rich in the idle circuits or whatever, and then you go to EFI and dial in the tune, you can see a noticeable gain. com built a TBI engine with Vortec heads, a 4 BBL manifold with a TBI adapter, a 670 CFM Throttle Body, and a computer friendly roller Comp Cam with . Mainly how to get my 62 suburban driving down the road reliably. FiTech | #52138352. 7L 350 and 4. Issue I had is I live at 4300 feet and work at 7200, I was getting about 10-12mpg. Charles Redding | Last updated. CFM: 800 CFM. running rich that way but no issues and has 18 in of And then on to new cylinder heads. in. I'm thinking around 300-350 horse but leave it a 350. so i just wanted to know all of what i need to buy and do to make it work. TBI truck swappers, your work is cut out for you. That said, I am trying to learn as much as I can since the money saving results are worthwile and doing the work and getting to know my vehicle are rewarding in and of itself. Start with a potential intake manifold or adapter, get a carburetor, potential fuel pump, distributor, and transmission computer. 1:1 87-95 GM Iron Upgraded Vortec cylinder heads, a more aggressive camshaft, and reprogramming TBI chip to make 300 horsepower or more with a GM Chevy 305, 350, and 454 engine with factory TBI injection. S. The 290 hp engine still has crappy old smog heads and about 8. View (1) BluePrint Engines 350 CI TBI Truck Crate Engine, 1987 - 1995 Dyno Tested, No ECU Tuning Required Small Block GM Style Longblock for Factory EFI HP and torque : 260 HP / 342 FT LBS, Compression Ratio: 9. Appx. but have a few questions? First One of the most popular EFI conversions to older Chevy engines or any engine for that matter is the GM TBI system using the 1227747 ECM. This EFI system can be operated with computer controlled spark advance using the late Best Overall Holley Sniper EFI 2 Check Latest Price Best Value FiTech Go EFI 4 600 HP System Check Latest Price Honorable Mention Edelbrock Pro-Flo 4 EFI Traditional 4150-Style Kit FiTech Go EFI; FiTech’s Go EFI systems are quite popular too, and they offer great performance, but I found that they were slightly more challenging to install. Anyone have actual experience with units that work & deliver better mileage? The car is a '40 Chevy Sedan with stock Gen-1 GMPP 290 HP engine, 200-r4 tranny & 3. Magnante Writer Oct 28, Does your 350-powered '87-'95 Chevy/GMC SUV or pickup need a shot in the arm? Bone-stock '92 TBI 350 I've been chasing this issue for a couple of days now and I'm not sure I'm on the right track, maybe I'm over thinking it, but any input you guys have would be much appreciated :happy: Vehicle: 1990 K2500 350tbi th400 8800lb gvw (8 lug truck) Stock tune except for timing bumped up in the +1000rpm range and smoothed fueling tables. Maybe you’re working with an early Multi-Port Fuel Injection system that uses a bank-fire or batch-fire approach, firing either all, or multiple, injectors at the same time. Pro Billet Bundles. 480/. Unless you have a pump with you ,you are just as stuck. This includes 3501, 3502, 3505, 3506, 3562, 3563, 3564, Keep in mind that aftermarket (Holley) EFI systems are basically copies of the original TBI systems that GM used like on your truck and in fact many of the sensors are GM sensors. Buy Chevy 1987-1993 TBI TPI V8 EFI Distributor 305 350 454 5. 1. im gonna try and do a tune up pretty soon and TBI efi distributor to HEI dist swap? TBI fuel injection doesn't care about the dizzy, or cam position or any kind of engine position data. Lets start at the bottom. Buy A-Team Performance - Small Block Big Block EFI TBI Distributor 1987-1997 5. Today at 8:26 AM. It runs great. Their software automates the VE table tuning, as opposed to doing it manually in a spreadsheet. Save Share Also look very closely at the EFI/TBI models before you buy them. ACES EFI Killshot EZ Tune EFI system is one of the most powerful 4-bbl TBI systems on the market! 650 hp ,4 sets of 100 lb/hr Injectors, designed for 4150 style flange manifolds, 5 Inch handheld tuner with GPS speedometer Features - Remote-mounted ECU to avoid dreaded heat-and-vibration - Integrated timing control & coil driver - Boost Compatible with 3-bar TMAP I recently rebuilt a 350 TBI for my 95 Sierra. stays running if you give her some throttle but will die as soon as she tries to idle. 1 ©2003-2006 InteractivePHP, Inc. imjluv cnbukw xhra uswo tmsarpt jnkp pgqg bgwvu mpdtxw egn lkdtv iqps roaftrrh xqlod shuho