Big Block Swinger from Oklahoma

I've had a couple of sacrilegious thoughts of sticking a turbo'd 4.6 4V/4R75 in my '72 Scamp...biggest reason is kinda like the OP, I have access to them for a little bit of nothing. The 383/727 will still very likely be the engine/trans of choice, but I won't rule out the possibility of dropping a forcefed modular between the fenders.