and Ive heard no more than 10 LOL but there are some crazies pushing 16+on big blowers! I think its safe 400 rwhp about 450 block. Over time even thats going to be a bit much. Its a good thing I dont give a **** when I throw 12# at mine
I would say however much it can take before it starts pinging
Just keep it tuned good and should be good for 8-12psi with 93 octane. You want more boost than that and you will need some 101 octane or octane boost.
the block can take way over 450!! My buddy is pushing 591RWHP with his 331 Novi 2000 15psi for the last year, granted it was a new block from Probe but still a stock one.
I can agree with that with one exception...alot of us dont have that self control! I mean, I dont. Mostly. I drive like Grandma but hammer it when pissed with a traffic situation that I can slip out of. I would also take it to the 1/4 track and race people. I dont know, my moneys on the block breaking in my hands. I wish it was stronger believe me