he has a 4V and FR500 heads (53cc) combustion chamber so he's in the low 9's a far as compression and he runs a Centi blower so thats a good CR. He is forged and can boost away. No reason he can't run 12-14 lbs of boost.TweekedGT said:10CC pistons is a no no on a blown car. Detonation here you come. I have 23cc and i'm still a little worried about running 14#'s on pump gas.
