Carb Question

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  • Lucky13x
    Junior Member
    • Aug 2014
    • 15

    #1

    Carb Question

    I have a 331 CID SBC with a 750 cfm 4 barrel with vacuum secondaries. There is a guy selling a holley ultra 650 cfm 4 barrel with mechanical secondaries for 500 dollars. Will that carb run my motor fine. We are running race gas 114.
  • Lizardracing
    Senior Member
    • Sep 2009
    • 839

    #2
    The smaller Carb would probably aid in drivability over the bigger one assuming both were optimized.

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    • powerslide
      Senior Member
      • May 2007
      • 2696

      #3
      how many rpm are you turning it? I would think you would have to turn it 8500 to get it to run.

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