Originally Posted by Nitrous02gt
Anyone have any advice on a pulley set? I just got SR pulleys and someone said they will mess up my water or oil pump... :/ anyone have anything that will help me?
I've heard that as well with the oil pumps used on the Mach 1 engines. I'm not planning to ever run with under drive pulleys, but if you do, at least use the Steeda set. Supposedly they worked with Ford on designing them. Maybe they were able to create something that doesn't effect harmonic balance..?