Here's my thoughts. Lets say assuming a th350 or really good built 700r4 with a 2800-3500 stall with traction.

383 or 400, for now we'll say 383
8.5:1 compression
AFR 195cc Heads
Cam around 225/230 duration with as much lift as I can find. 112-114 LSA
With a PS1-c Procharger pushing max boost on 92-93 octane gas. About 15lbs.
Using super ram intake. (personal prefrence on that)

Would it be capable of 600 horsepower.
Or is there something I'd be lacking.

All necessary upgrades would already be done. Headers, bigger injectors, custom prom.