Well let's see. A 302 bored and stroked to a 347, SVO heads, 355 rearend from a stock 273. Dyno test was 505 HP at 5700 and 482 ftlbs at 5250. Runs low 11s 1/4 with street tires. Lord knows what she'll do on slicks. Bring it on.
As I said, my Honda S2000 gets 240 horsepower out of 2.0 liters - 1.2 horses per cc - unheard of in a naturally aspirated engine.
Your monster gets 505 horses out of a 5.69 liter engine - .89 horses per cc.
I'll have to check out the torque specs, and get back at you.