Estimate Cam Intake / Exhaust Duration Needed @ 0.050"

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Engine Size CI Number of Cylinders
Max Engine RPM Volumetric Efficiency of Enginne %
Head Flow - Intake CFM Head Flow - Exhaust CFM
NOTE: Intake and Exhaust CFM Flow should be at or below your Cams MAX Valve Lift.

Special Thanks to Chris Straub - Straub Technologies


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