I need to know the formula...
Crank pulley size + Superchager pulley size = X amount of boost...?

Not sure the size of a factory Crank pulley off a 94-95 5.0L ive read some tonight some say 5.75" and some say 6.5" not sure the correct size.


So if your crank pulley lets say was 6.5" and you had a blower pulley of 3.70 lets say and your max boost was at 5500RPM, how much boost are you creating...?
How do you do this formula?

Thanks