Dannie,
PM Fouledout 421, alcoholbanshee, wheelman chassis, jd, joee2002 or one of the racers out west. These guys will help answer your questions but you need to read what you post. Your posts make you look like a fuckin' retard. That is the reason flame you in every post.
BTW What kinda of racing are you doing 300 ft, 500 ft, drag, sand, your weight, rigid or suspended chassis, etc. If you give all the information needed than people will be able to tell you what worked for them and what hasn't.