What does it take to hit 7,500 RPM

[Coupe50h]

11.1 compression and aluminum heads, maybe not too bad, id back off the timing and drive it on a cool day, with the minimum of 100-103 octane fuel, just add some vp to 93 to be safe. wot runs would be 115 octane, especially with nitrous, just my opinion though.

Also, when he said the crank and internals would have to be lightened, he means really lightened, as in a custom forged crank that would have to be cut on a bit, and rebalanced, talkin$$$$$

500 at the crank would need to be achieved with a power adder, if it's still gonna be streetable, now if you get into strokers you can push 500 n/a no problem.
302/306 is gonna have a rough idle, and high compression, maybe a weekend car for me

Here is my opinionated recipe for 500 crank hp 306, and reliable:
d.s.s 306 pro bullet, msd, stage 3 trickflows, longtubes, holley intake, 70mm tb, f-cam, 42# injectors, 8lb of s-trim boost.
I have seen a combo similair to this, pushing 480 to the wheels with stock rev limit and computer. also rode in it, and im hooked on that power