[Formulajones]

Originally Posted by pastry_chef

I haven't seen it with a Pontiac but I have many examples that clear 600 HP with 46x cubes and similar hydraulic rollers.

This uses an Isky 238 / 248 with .578 / .608 - 109 LSA.
https://www.youtube.com/watch?v=rIIoazbO0d0
Hits 600 HP @ 5400 RPM and continues to climb.

Induction flowing 300 ish isn't going to do it.

I haven't seen it with a Pontiac either but have with other brands, if we are talking about pump gas. I did 600hp with a 460 BBC using a 242/248 cam and an excellent set of AFR heads.
I've never been able to do that with a 455 Pontiac, even some more rambunctious Pontiacs with a 254/262 cam and 330 cfm conventional Eddy heads. They'll make a crap load of torque though.