I made 550 rwhp with a stock short block 302, stock cam and out of the box afr 165 and systemax. That was with 13 psi, water/meth and 91 pump gas. Seen lots of cars in the 9's depending on weight. They won't last forever at that power level though.
i would not wast my time with a s-trim on that big of a engine. i would go ysi. we were only able to get 12.5 psi out of our t-trim at 58,000. but it did make good power and ran high 9's in a 3700lb 4th gen.