[Nevin]

I have a Perrin lightweight stock-sized pulley on my svx. Works great! Plus you don't have to worry about switching belts when you get one that's the stock size. I've been down the undersized crank pulley road on other cars and won't ever go back UNLESS I'd consider getting an entire pulley set to make up for the speed loss associated with a smaller crank pulley.

I don't know if I could tell a huge difference in power, but I installed a 2.5" exhaust and the lightweight pulley, and dropped .4 seconds in the 1/4 mile from those mods alone!