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  1. J

    Off idle flat spot

    also i have the sure weather the vac advance is hooked up to either port or not at all still surges
  2. J

    Off idle flat spot

    Update Off idle was what I noticed yesterday. Today it's about 2k and surges. Couple hundred rpm. I tried moving my vacum line and really haven't noticed much. Thinking of getting vacume gauge and adjusting carb? Right now the screws are at 1 1/2 turn
  3. J

    Off idle flat spot

    Thoughts... I just installed a edelbrock performer plus cam, set timing at 14° per the sheet. Runs good smooth.. ONLY barley of idle small flat spot then it kicks back in. Holley 650 cfm... Kind of off doesn't hamper much. but feel like the flat spot shouldn't be there. Whats your thoughts

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