Can anyone tell me what are the best parts to get for a pred 90 to make it go atleast 45 mph? so far i have a high performance cdi, 39 tooth sprocket, and an exhaust pipe. If you do suggest some parts would u please tell me what site to go to to get them? I am going to start racing and i need mine to be way faster if im going to win. My quad is an '04 black model.