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Thread: Pro Action 14 deg heads???

  1. #1
    Junior Member JOURNEYMAN
    Join Date
    Dec 2008

    Pro Action 14 deg heads???

    Any body run these with supercharger or turbo? I am building a 421 SBC blow thru alcohol with bryant crank 10.5:1 compression and wondering if anyone had trouble with heads under boost? Looking to run 25-28 lbs of boost at 8000 rpm.

  2. Racing Junk

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