hp #'s aren't going be good for much other than bragging rights IMHO. A 454 was designed as a torque engine from the beginning, make the most of this and you got it whipped. Friend of mine runs them with great success as he utilizes the good points and forgets the not important stuff. I have no info on how he builds them other than he keeps cam size down so he doesn't have rev the snot out of them, but I do know he surely hurts a lot feelings with them and doesn't turn them over 5500 rpm's doing it.
Just food for thought, what do you have in the camaro already as far as suspension and transmission?