On the negative side you will have less primary case compression because the piston will close the intake port later. Cutting the piston in that way will tilt the balance to provide more RPM but as others have said, be conservative
On the negative side you will have less primary case compression because the piston will close the intake port later. Cutting the piston in that way will tilt the balance to provide more RPM but as others have said, be conservative
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