Originally Posted by
brent701
Why does it seem a lot of you guys are so low on the Spur and high on the pinion?
I am running a 20/81 and it has a butt load of low end.
they are doing it to get more top end out of the motor, 81/20 is what you would run on like a 6.5...
at the top level cav runs 81/22 on a 7.5.