Good question.

Are you considering a ProCharged, or supercharged Gen III?

I think it will still be cheaper and easier to build a 511-572 CID, B1 headed, big block wedge. Get a 4.500" bore World (MP) block (aluminum if you have the money), 4.25-4.50" stroke crankshaft, and some B1 original heads and you have 900 hp for roughly $15,000.

But the Gen III would be really cool, light weight, etc. And I think with a small ProCharger or supercharger it could be the future.