Don't have access to the rules now, but does anyone know if higher compression pistons are allowed in Prepared Class. I know that you can replace the pistons with stock sized "aftermarket" ones, but don't remember the exact details involved when going this route.

-Vracer111 who would like to be sure of what is allowed with regard to pistons in Prepared class. And who would rather get 10.5:1 pistons to the "stock" 9.2:1 pistons - especially since they are the same price.

 

I'm pretty sure there are no piston limitations in Prepared class. Pretty much weight and wheels size are the only limitations.