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Registered
Join Date: Oct 2003
Location: Mount Pleasant, South Carolina
Posts: 15,528
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Sounds like valve float from tired valve springs or over revving. What cams are you using? With stock, SC or 964 you shouldn't have to cut the pistons. I'm running the 964 cams without a problem.
Last edited by A930Rocket; 05-04-2009 at 03:33 PM..
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