Carburetor Size Needed

Dial in cfm for optimized performance!

Fill in the fields below, click calculate, and we’ll show you the optimal cfm for the street and track! The ratings are different because street engines have a volumetric efficiency around 85% while racing engines are closer to 110%.


Maximum Engine RPM:
Engine Size in Cubic Inches :
Street Carb CFM : 
Racing Carb CFM :