Bringin this back to the top cause I'm thinkin again. Dangerous. How bout a cheap and nasty turbo build with 6-8 psi on a worn bore ball honed with new rings and original cast pistons? The ring gaps would be wider than stock. Run it a little fat maybe with a 350 Holley two barrel. I don't care about a little smoke here and there.
Blow-thru' or draw-thru'? No way I'd use a carb that small draw-thru, but if the bar ain't high,.....500 2bbl'd be OK, be some suksheeon on the inlet side of the snail otherwise.