Hello, I've had my this YZ for about 2 months now and im wondering if it is a descent bike to build up and race? I know Jeff Howe had one and did great on it. But compared to the newer bikes is mine worth putting money in it to race just locally? Basically will mine ever be able to pull its own compared to a brand new bike? Right now it has a pro circuit works pipe and factory sound silencer,pivot works swingarm and shock bearings,new ufo plastics, Factory effex graphics kit and seat cover, and twin air filter. It still has a yamaha piston in it would it benefit from a wiseco?? Thanks for your opinions and time...