Calculate Optimum Runner Size and Length
To find the optimum intake runner area and length for a particular rpm. 
Engine Displacement (cubic inches only)

cubic inches

Number of Cylinders


Peak Torque RPM

RPM

# of Induction Wave

(sound waves)

Adv. Cam Duration

Degrees


Optimum Intake runner area

0.00
square inches (calculated) 
Optimum Intake Length

0.00 inches long (from valve head to plenum). 