Valve Float

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  • FLYIN-9
    Member
    • May 2015
    • 83

    #1

    Valve Float

    I'm chasing what seems to be a valve float issue. Everything was bought together so it would be like a matching set. Spring pressures were checked & set up (from what the machine shop told me). When I first ran this engine combo, the wrong gear was in the car & turning about 8800. The valves were floating pretty bad halfway up the straightaway. I'm now turning right 7500 & it sounds like a slight float at the upper end of the straight. Could it be possible that I have weakened the springs turning it up so much? Thanks F-9
  • dave41
    Senior Member
    • Sep 2007
    • 208

    #2
    hydraulic or solid , makes a differance

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    • FLYIN-9
      Member
      • May 2015
      • 83

      #3
      Solid. 256/536

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      • dave41
        Senior Member
        • Sep 2007
        • 208

        #4
        could be timing not advanced for that RPM

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        • FLYIN-9
          Member
          • May 2015
          • 83

          #5
          It's at 34

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          • dave41
            Senior Member
            • Sep 2007
            • 208

            #6
            36 - 37 for 8800

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            • Sortee
              Junior Member
              • Mar 2017
              • 7

              #7
              advanceable cam gear? head shaved?

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              • FLYIN-9
                Member
                • May 2015
                • 83

                #8
                It does have an adjustable gear. Right now the cam is on zero. Was thinking about going 4 advance, but wanted to find the float issue before I did that. The head has been cut to the bottom of the intake studa

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