picture of my magacharger
#23
#25
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
why would you use a part that underdrives accessories? An underdrive pulley slows down all accessories driven by the crankshaft, so it would slow down the blower and produce less boost. On a blower you want to run a larger crank pulley that overdrives accessories and the blower. The smaller blower pulley will create more boost also.