pablo
Well-Known Member
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- 1,787
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- slipknot central
i,ve been building a new motor as a spare so decided to do some porting work on the head and crankcase, i managed to get my hands on a blown 23cc head tuned by a guy who is well known for his porting, so that was a good base to work off, i,ve allso been reading up on boost ports cut or drilled into the piston but do they work and do i risk cutting or drilling my new piston,