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  1. eric 87

    fuel system wiring to bypass computer after TBI to carb

    Okay Ladies and Gentlemen.....He is an idiot idea of mine. I was going to order a new wiring harness for my 87 GMC. this one I am doing the TBI to carb swap. I want it to look professional after I am done. But was thinking instead of doing all this rewiring how can I use 95% of the existing...
  2. eric 87

    3 port fuel tank selector valve

    I know this thread is old. But thought if anyone looked at it...... I am in the middle of a TBI to carb swap. Talking amongst yourselves can begin. But I decided I want to not only swap but completely get rid of my computer and all the extra wires. I am going to run this universal 3 port...
  3. eric 87

    Fitting of twin gas tanks

    I wish I had seen this before heading down my path I am on. Although mine doesn't seem like its going to be bad. There is a company that sells a 3 port selector switch to wire off my dash switch. My truck is 87 with the former TBI that I am swapping out now to carb. Was going to just use the...
  4. eric 87

    Jump AC compressor

    I appreciate. Is that for an 87....I note the different compressor. Mine is the little round I think A4 or is it R4. Anyway I didn't know if the wiring went through the computer at all or if it were separate and not part of that harness. Someone said to ground a wire on a relay or something but...
  5. eric 87

    fuel system wiring to bypass computer after TBI to carb

    speedo is manual cable on mine. It is a th400 from factory. 87 it seems had a lot of 700r4's but wonder if it wasn't just from plant to plant.
  6. eric 87

    fuel system wiring to bypass computer after TBI to carb

    the engine that was the 350/290 hp was a GM performance crate engine. That is the base now. And even on it I am going carb. But now that the carb swap has been done minus the new project of redoing fuel system and trying to figure out if I need to do anything to the AC wiring to completely...
  7. eric 87

    fuel system wiring to bypass computer after TBI to carb

    Since my wife wants something that is like a new truck but in an old style body....and was fine with me putting in a turn key fully dressed engine for 6k that had the accessories and all... What my idea is though is to get away entirely from the electronics in my vehicle. One thing I learned...
  8. eric 87

    fuel system wiring to bypass computer after TBI to carb

    thanks. That is what I think I will have to do. Trying to determine how far back to go. All either of us need is AC and a good stereo for town driving and the cruise control for longer drives on interstate. I can live without the cruise if I have to. We do not need all the modern electronics...
  9. eric 87

    fuel system wiring to bypass computer after TBI to carb

    Thanks for the help to all of you. I think this project became more than I initially had envisioned. But as you get started you see things that you think "while I have this apart" and it snowballs. I can do the conversion as everyone else has and leave the computer and fuel system alone. Ride...
  10. eric 87

    Jump AC compressor

    I read this entire thread hoping to find something I can use with my 69 firebird with an A6. I doubt anyone else is reading this thread to the end now though but what the heck I will try. I have an 87 GMC sierra 305TBI or was. It is now 305 CARB. I know I know don't do it etc. But I was...
  11. eric 87

    fuel system wiring to bypass computer after TBI to carb

    Appreciate the help. I have all the parts you mentioned. HEI dist. Intake for carb for TBI heads and carb and fuel regulator. I am initially going to do as you said using the in tank pumps etc. But if the truck runs good with the carb which I have no doubt it will since the pre computer 305s...
  12. eric 87

    fuel system wiring to bypass computer after TBI to carb

    Well I may get shot over this. And frankly you might be doing me a solid by putting me out of my misery and making my wife happy not only for the insurance BUT also to not have to hear about more PARTS. Without further adieu...I am swapping TBI to carb. Yes I know. And I tried and a shop tried...
  13. eric 87

    87-91 chevy TBI issues, "Code 42"

    original under the hood and the interior I think was redone in stock format to original colors according to RPO code and the body was white from factory. It is white but it is white pearl. You can see how I got in from the avatar picture. Those wheels are in the garage but NOT on the truck. I...
  14. eric 87

    TBI to Carb Swap???

    Hello Fellas and any Ladies that may be here. I got my shipment of parts from Summit and I went and bought what I hope is all the incidentals I will need locally. So the TBI to carb swap is underway. I have everything taken apart and the intake is still sitting in the truck with the fuel lines...
  15. eric 87

    Gas gauge wiring question

    I am in the middle of converting my TBI to carb in 87 GMC shortbed. I have everything disassembled right now and thought this is the time to do what wiring I want to do. Originally I was going to go the route of splicing into the former distributor 4 wire plugs purple wire to HEI tach port so...
  16. eric 87

    87-91 chevy TBI issues, "Code 42"

    Funny thing is I just got my shipment from Summit yesterday to swap my TBI to carb. about 1000 in parts and yet here I am reading about MY code 42 that was the thing that tipped me over the edge to carb. I thought I had my issues resolved except for this erratic idling even though I have...
  17. eric 87

    EFI Dual Tank Conversion, need help on power 4 the pumps.

    on anti squeek. If you can't get them could you not use a bicycle inner tube cut to create a long strip of two ply rubber and use it? Just thinking. Then trim the sides if need be if they hang out and look like crap.
  18. eric 87

    Fitting of twin gas tanks

    DUDE Even with pictures I would need to see it done to figure it out and you did it in your mind.
  19. eric 87

    1987 350 TBI running rich at idle with occasional backfire

    Well well well. Reading yours is just confirmation I need to do the swap I am on the computer to buy the parts for. I figure at least these parts I can use on a new engine if I should decide to swap it. My engine is strong enough and runs good SOMETIMES. Just wait yours may end up quiting as you...
  20. eric 87

    Mechanical fuel pump beef/info rant

    I never worked in shops but did work in the medical supply field and folks do not know the half of it when it comes to OUR healthcare system. One sees enough of that sort of thing and then watch the news and you get disheartened as a mild way of putting it. I say I never worked in a shop but I...
  21. eric 87

    Mechanical fuel pump beef/info rant

    Hey so the other way of doing it in another sort of company in the bid process is to bid low like that BUT you make up for it by padding the bill with more hours and or parts that weren't needed to justify the higher rate. So you replace parts that are good. Now to be careful though because they...
  22. eric 87

    Mechanical fuel pump beef/info rant

    And what do we do about it? That is up for discussion. What most don't think about is that we allow it. Our laws or regulations on "American" companies lets them get by with it. Many will say look how good the stock market is. That has no bearing on our lives. Those stocks are on these companies...
  23. eric 87

    Frustrated 87 GMC owner!

    I'd be a fool to not want to get this one straightened out. The cost savings would be great. But like you we are rural near Ft Knox Ky. I drive 100 mile round trip 3 times a week checking on my brother. I really hope this truck can be my vehicle for that. While I drive my 69 firebird regularly I...
  24. eric 87

    Frustrated 87 GMC owner!

    I am getting a code 42 now since I replaced the bulb for the SES lol. I replaced the ignition control module since it is part of the Code 42. The other cause that would pertain to my truck year is the fuel cutoff relay being open circuit or ground short I think it says. I have two relays and I...
  25. eric 87

    Frustrated 87 GMC owner!

    I do appreciate all the info. The only add on I have in the truck is stereo by the previous owner. It has an amp behind the seat and two speakers. He took the sub out apparently because there is a big hole in the self made cabinet holding the other speakers. The amp I do not think is hooked up...

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