Does everyone on here run a head spacer with a supercharger/ turbo Reason i ask is i had my headgasket done last year along with a skim and new valve stem seals etc so dont really want to get it all done again to fit a head spacer. Im now thinking i should supercharge it but do i need to fit a spacer plate if not how much BHP could i safely run and what psi. Im thinking of a rotrex supercharger if this helps matters. Cheers in advance