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Thread: Newbie Carb Problem

  1. #1

    Default Newbie Carb Problem

    We recently bought a 1966 Ford Mustang Restomod. It has a 302 with a QFT carb with electric choke. Not sure of the type probably, an SS-series. The problem that recently developed, is when the engine is started cold it starts fine, then as the choke opens the RPM builds to 2800 to 3000 and will not kick down. Stuck float? Float levels are good. I tried tapping on the carb. Any suggestions?

  2. #2
    Join Date
    Jan 2010
    Brisbane, Australia


    Is the red fast idle cam free to move up & down, since it's weighted to fall down, as the choke opens? Gary

  3. #3


    A float stuck open should flood as in fuel everywhere. I agree about the fast idle located on the choke adjustment side of the carb, sounds like it's sticking. Or if your throttle adjustment screw is turned in too far, the idle will be high when the choke opens. Also make sure there are no vacuum leaks causing a high idle when it's not choked. No need to tap with something bigger, joking.

  4. #4


    The fast idle cam is stuck.

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