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If the rules allow it, do it! By the time we finished everything that could be done while staying legal, these heads were up by 14 hp over a set of "as-new" heads.
Valve Seat Power

 If the rules allow it, do it! By the time we finished everything that could be done while staying legal, these heads were up by 14 hp over a set of "as-new" heads.  View Related Article

 

 

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