Yeah, start with the basics, a cylinder head swap is easy enough to perform as an afterthought, once you get it going if you desire. Another thing that is often overlooked regarding many flathead style builds that will be using forced induction like this is, that while you have basically (3) choices of how to do it(turbo, roots blower or centrifugal supercharger), a turbo creates a significant heating problem for the flathead, that it doesn't in a conventional OHV engine. That might be why that historically you don't see any turbo'd flatheads, only blown or supercharged.
The fastest Flathead on the planet is Vortech powered....and its pretty awesome too!
