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Thread: 8896 baseline ???

  1. #1

    8896 baseline ???

    motor 565 afr 345 heads ,9.8 to 1 ,cam 739 lift 270 at 50 dur , 2-1/8 headers ,8896 1050 dominator ...runs rich at idle and top end ...(black smoke out exhaust)
    is there idle feed restrictors i can reduce to get cleaner idle in this carb?
    i know just needs some jetting work just trying to get a starting point..

    do you guys run power valves?
    thanks in advance

  2. #2
    sorry forgot to mention car sees a lot of street time ...

  3. #3
    Member MASTER JOURNEYMAN
    Join Date
    Dec 2005
    Location
    Building shelves for wally's
    Posts
    36
    Start with 86 jets in both sides and 4.5 power valves with the mixture screws 1-1/4 rounds out from softly seated.



    Mark

  4. #4
    i had same problem and pro systems fixed it and also gave me more horsepower. I have a 572 bbc 9,7-1 in recreational boat. Idled too rich and just didnt run right. They didi all kinds of stuff and it really made a big difference. Cost me $430, but was worth it.

  5. #5
    put 86 jets in all i had was 5.5 power valves ,put those in adjusted screws they are 1.5 turns out ..car runs much better might have too drop jets down a few sizes ,but still too rich at idle but much better than it was ...should i get some air bleeds for the idle?

    thanks so far for your help

    jim

  6. #6
    Senior Member DYNO OPERATOR
    Join Date
    Nov 2006
    Location
    NC
    Posts
    558
    ITS AIR BLEED TIME FOR SURE.

  7. #7
    Member MASTER JOURNEYMAN
    Join Date
    Dec 2005
    Location
    Building shelves for wally's
    Posts
    36
    1 other thing to check is, close the throttle blades on primary and secondary then gradually open them equal amounts to get the desired idle RPM.


    Mark


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