Big inch small block for street use.

I've got an R3 non-siamese and a BPE 4.25" crank that I'm just itching to put together with a 4.06" piston--440" small block. I am even considering topping this shortblock with some 300+cfm EQ Mag's which IMO would make a unique and streetable big small block. I'm betting with the right cam it would be close to 600 HP and probably 580 ft/lbs all in by 6200 rpm. Besides if you got the itch for more power (and we all do) you put some serious heads on it. The more I think about this the more I like it. J.Rob