Wanting 500 hp (or close) out of a stock stroke 360

Just add a turbo, and you can comfortably run on the street (and highway) with a 727 and 3.23 gears. That's the beauty of a turbo, highway cruising gears and big power on tap on a relatively mild long block, and it will idle all day long. Plenty of guys have hit the 500 threshold with a 360 and if you're good enough, with a stock rotating assembly, just add arp rod bolts. It's all about the exhaust, turbo, the fuel system and control, and of course traction.