High idle help

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  • stryker69
    Junior Member
    • Sep 2007
    • 11

    #1

    High idle help

    I'm running a 604 crate. Cannot get the rpms below 2200 at idle. Have tried 2 different carbs, doesn't matter wether I run the return from the tandem pump or bypass. Timing set at 34 degrees. I am completely puzzled at this moment.
  • Lizardracing
    Senior Member
    • Sep 2009
    • 839

    #2
    Sounds like a terrible vacuum leak.

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    • let-r-eat
      Senior Member
      • May 2007
      • 2319

      #3
      If you put your hand over the carb *chokeit* can you slow idle?
      BUCKLE UP NOW, YA HEAR?

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