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    1. #1
      Join Date
      Oct 2011
      Posts
      35
      Country Flag: United States

      950HP idles to fast

      I put a Holley 950HP on my motor and it idle at about a 1000 RPM's when it warms up. I have backed off the idle butterfly screw all the way. What other options do I have to reduce my idle speed another 250 RPM's?






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