pulleys
 

i just installed my aem power pulleys. and it runs fine but im getting a noise from the belt and have no idea what is the problem is this common for a new belt, or should it technically run smooth..

well is the belt tight enugh ? what kind of noise are you getting ?

its like a high pitched squeeking... only happens at low revs
once im moving its fine and when i change gears it might happen

Belt squeak is very common with aftermarket pulleys. I asked this question a long time ago here.