what were your compression numbers? timing plate is a great low budget mod that you can feel a good diff from. set it at plus 4 and locktight all your bolts and you will not have a prob.if you have to do a topend then spend a lil extra and get your jugs ported. with port job , new pipes (from stock) and plus 4 you will think your on a whole new bike and that should hold ya over for a couple of months till ya get that itch again