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  1. Port, Polish and Port Match

    Engine
    I've got RHS Pro Action 64cc, 200cc heads on a forged 383 with a comp nitrous cam -CL08-301-8. Looking for a little more HP. Ideas on how much HP I'll gain from a port and polish and port match? Running a Perform RPM manifold. I know I've got room to move on the cam. Looking hard at the Comp...
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