I am looking at different brands of under drive and over drive pulleys. Unorthodox Racing has a nice set, that's who made the flywheel for my clutch. Who has a set of pulleys and what brand do you reccomend? The other question I have is, if you over drive the crank, do you need to under drive everything else? Thanks in advance.

 

Unorthodox seems to be the most popular brand and well respected. I don't know the answers to your other questions, but I think Unorthodox could answer them.

 

The pully you get with the kit is the crank pully and if im not mistaken its smaller than stock the smaller pully makes the belts turn slower thus underdriveing the excesories which is the point because if they turn slower they use less power