Cool engine! I bet it makes lots of horsepower just before the crankshaft snout and balancer go flying of the engine! Stand back!
Weak cast iron crankshafts are the problem with supercharging these great engines. I was around the supercharged Pontiac funny cars in the 1960's and the crankshafts couldn't drive the superchargers without snapping the snout off.
Let us know how it comes out.
Dennis Moore