What is a good carb for a mostly stock 430?

Discussion in 'Other' started by Sean's GS, Feb 24, 2010.

  1. Sean's GS

    Sean's GS Active Member

    I'm running an Edelbrock 1411 750cfm on top of a offy intake, otherwise stock. The car will stumble/stall off the line, I have tuned the carb and even tried the metering rod/jetting kit to no avail. I'm thinking of going with an Edelbrock Thunder 650 AVS. Any suggestions? This is a repost, I had it in the holley section by accident.
     
  2. DaWildcat

    DaWildcat Platinum Level Contributor

    Sean, what happened to your original post on this subject???? Larry and I were trying to help you out.

    Devon
     
  3. flynbuick

    flynbuick Guest

    Cliff Ruggles I believe posted that the stumble is characteristic of the E brock carb. Get a Q jet for your ride. It is a great carb.
     
  4. Sean's GS

    Sean's GS Active Member

    I had it in the holley section by accident, didn't want to get in trouble so I moved it. I did gather that my offy intake is a single plane=bad for a stock motor. I believe one you guys suggested a q-jet as well.
     
  5. DaWildcat

    DaWildcat Platinum Level Contributor

    Are you stuck with that intake, or can you go with another? If you're planning to run the Offy, maybe we can help. The Quadrajet is really hard to beat for drivability & performance for your application.

    Devon
     
  6. Sean's GS

    Sean's GS Active Member

    I'm hearing a lot of folks suggest the q-jet, I had a bad experience with one on my Buick 350 that I used to have. It was a reman unit that I got from autozone, nothing but stalling, the car went good when it ran though. I guess I'm kind of biased with the eddy carbs, the car I had before this one ran well with one, almost like efi, but it was a 600cfm and I've heard lots of bad things about the quality control on the #1411 eddy so. Do you know of any good sources to get a good q-jet?
     
  7. Sean's GS

    Sean's GS Active Member

    If I can make the offy work I'd like to, it was on the car when I got it. I'm planning on doing a mild build later on, but for now looking for drivability. Are the jet q-jet's any good? I can drive to the summit store so, it is tempting.
     
  8. DaWildcat

    DaWildcat Platinum Level Contributor

  9. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member


    Get a Q-jet core and send it to Cliff R. DO NOT BUY AN OFF THE SHELF PARTS STORE Q-Jet. You are asking for trouble, and that is probably the reason for your bad experiences with the Q-jet. See Cliff R's post in this thread:

    http://www.v8buick.com/showthread.php?p=1595056#post1595056

    BTW, the Offy is a single plane intake, and not a very good one. You are probably giving up a lot of low end torque and drivability by using it. Use a stock cast iron intake, or one of the Edelbrock dual planes. (Performer or B4B)
     
  10. Sean's GS

    Sean's GS Active Member

    I played around some more with the eddy 750 today. I believe I am finally making some headway with it. Step one: I ended up going back to the stock orange step up spring which made the transition from idle smoother. Step two: I also put the 73/42 metering rod in it which definately made a difference when going part throttle to wot. I am going to drive it more tomorrow but I need put gas in it(ran out). I'll let you guys know how it pans out.
     
  11. Eric

    Eric Founders Club Member

    For what you say you want to do...
    Quadrajet,Quadrajet,Quadrajet...did I say Quadrajet?
    And for sure a stock intake.
    Listen to Larry !

    Eric /Oregon :3gears
     

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