O.K., I bought a Pete Jackson timing gear set on ebay. It is new, but only had some of the intructions with it. Now I know how to install it, but dont know about the cam timing. It came with about 5 cam buttons that I am sure are different degrees. How can I find out which is which, and any advice on what degree to use if any? I think I am asking this the right way, so sorry if I messed up.