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Thread: Idle mix screws on Edelbrock

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  1. #1
    Gerald Streeks's Avatar
    Gerald Streeks is offline Reverse Induction WOW! Visit my Photo Gallery
    Join Date
    Apr 2006
    Car Year, Make, Model: 73 C20 Chevrolet & 1984 GMC Caballero

    Idle mix screws on Edelbrock


    What is the rule of thumb adjustment for the idle mix screws on an Edelbrock600 CFM with electric choke?
    If I knew anything I'd be dangerous.

  2. #2
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
    Join Date
    Jul 2003
    Car Year, Make, Model: '67 Ranchero, '57 Chevy, '82 Camaro,

    Start at about 1 1/2 turns out, then adjust with a vacuum gauge for peak vacuum, then in about 1/4 turn works for me.
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  3. #3
    WRENCHD is offline CHR Member Visit my Photo Gallery
    Join Date
    Dec 2005
    north west
    Car Year, Make, Model: 64 DODGE 440

    as dave stated above, this is the proper way to adjust carb. also if you don't have a vac gauge then use a tach and follow the above only open up (turn out) the screws for best i
    dle and re set the base idle

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