Originally Posted by Leester
BUt what do they really do is what i'm after do they help with the cars performance? And do i really need them? that's what i would like to know.
-Lee
Reduce belt wrap which reduces drive train drag so freer when off power, easier to grear the motor you can gear it at 8.1 instead 8.05 whatever.
make a lot of differance for stock and super stock.