Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
Either ITB's, turbo or supercharger.
It's probably possible with cams, a shed load of cylinder head work and a remap as well, but that would probably cost an absolute fortune. The other options represent more "bang for buck".