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  1. T

    85 C-10 Suburban barn door parts

    @MightyMick Did you find this part? I'm in need of it as well.
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    Electric Choke Issues

    Ok...I think it's all adjusted now. Got the choke and pull off's set, and it seems to be running good. Didn't spit any wet black spatter, so that's a step in the right direction. Once it was running, I hooked a vacuum gauge up to the big manifold port on the front-bottom of the carb, and...
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    Electric Choke Issues

    Great, thank you. What's the best order to make those adjustments? Should I do the fast idle, primary choke pull off, secondary choke pull off, and then choke adjustment, in that order? Or a different order? I'm worried that one adjustment will mess up the other...
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    Electric Choke Issues

    What do you mean by the choke may be "too tight"? My Quad has a secondary pull of, and I think they're adjusted right, but they're probably not! :) I just ordered a hand vacuum pump so I can verify the pull-off setups. The fast idle should be adjusted as well, but same story...is there a...
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    Electric Choke Issues

    Apologies if this is a duplicate post; I'm having some issues with my carb and was wondering if anyone could help? I have a Quadrajet 4 barrel, mounted to a stock intake on an 84 C20 454. I recently replaced the hot-air choke with an electric choke, and since then, almost every time I start the...
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    Help locating shift indicator part

    Update: found the clip on ebay; still overpaid ($38), but hopefully it fixes my problem. Thanks!
  7. T

    Help locating shift indicator part

    Thanks. Doesn't seem legit...I added the part to my part, clicked on checkout and the cart was empty; just kept going in circles. Tried to email the shop to confirm part availability and got a bounce back for address not found.
  8. T

    Help locating shift indicator part

    Thank you! Is that a safe site? Have you bought from them before?
  9. T

    Help locating shift indicator part

    Hello, I'm looking for the shift indicator clip that attaches to the steering column, GM part number 25016378. Anyone have one, or know where I can get one?
  10. T

    Q-Jet Block Off Plate

    Thanks everyone! Great tips, and help, as usual!
  11. T

    Q-Jet Block Off Plate

    So I could just remove the tubes, leave the existing plate in, with the 2 small holes in it, and the only "down side" would be a small amount of extra heat coming from the manifold?
  12. T

    Q-Jet Block Off Plate

    Hey all, I have a stock intake on my 454, and currently the Q-jet uses the hot air stove system for the choke (see pic). I purchased an electric choke conversion, but need to block off those hot air holes. I found this from Edelbrock (https://www.summitracing.com/parts/edl-8961/make/chevrolet)...
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    Vapor lock or something else?

    Thanks. I don’t remember ever having the charcoal canister (it may have been removed prior to my getting the truck), but I don’t think it had one. What is its purpose? I haven’t checked the fuel pressure/volume; is there an easy way to do that?
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    Vapor lock or something else?

    Thanks. I should have specified my year, it’s an 84 C20, and I don’t have the charcoal canister.
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    Vapor lock or something else?

    I have a Quadrajet carbed 454, basic factory setup: stock mechanical fuel pump with heat shield-wrapped rubber fuel line (away from the block), factory-style tank and factory style sending unit with 2 fuel lines running the frame rail of the truck. Two issues/questions: - When the outside...
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    TH400 Information Thread

    Thanks. After over-thinking it, as I always do, I remembered I could just unscrew the speedometer cable, and look at the end of the driven gear. Looks yellow to me, huh?
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    TH400 Information Thread

    Thank you. Is there any way to determine teeth count without taking it apart to look at the color?
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    TH400 Information Thread

    I think I need to replace the speedometer driven gear. Is there any way of determining what size (amount of teeth) of speedometer drive gear came factory installed in my THM400? The ID tag says FP, and it's installed to a 454 in an '84 C20 truck. There is also a '40' stamped on the speedometer...
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    Switching from dual to single tank... How do I fix the wiring?

    @echo7bravo: This is how my setup is current connected, as you said: pink wire from engine harness -> down driver side frame -> connects to pink wire going across frame -> aux/pass tank sending unit. However, my fuel gauge is not working still. I still have the dual tank selector switch on the...
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    84 C20 Engine Harness

    I'm looking for an engine harness for an '84 Chevy C20 454 A/T, with A/C? Can anyone help me out?
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    Need help with engine bay wiring

    @gmachinz - How can I purchase one of those wiring harnesses?
  22. T

    84 C20 Wiring Questions

    Hey all...brand new user here...forgive me if this is a repeat thread or question(s). I'm working on rebuilding my Grandpa's C20 w/ a 454. I'm interested in replacing the wiring for the engine, engine bay, and headlights. Any idea if I can buy a replacement harness for that? I've checked all...

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