Or, you can go turbo with a drawthrough system. Won't be able to run much higher than 6 or 7 PSI safely with a stock engine, but it'd be pretty unique.
Why 6 or 7 PSI? Is that *more than* stock boost, or *total* boost? What parts are you suggesting might be inadequate? Stock for the QJet turbo was about 9 PSI, very few more for SFI without intercooler (Hot Air).
As long as you run premium octane, tune properly and stay out of detonation .... I'm scratching my head.