Just a 284-484?
I'm sorry but 460 hp from that 484 purple cam is a load of crap ...that is a 350 hp camshaft in the real world.
On a real dyno a normal 340 with a set of ported X heads/headers/intake/750 and with the sun and moon and stars all aligned on the best day 375 hp.
I've read a lot of stuff on this board that makes my eyes roll but from my personal experience on a real dyno it's just not going to happen.A 484 purple cam that makes 1.35 hp per ci in...not in the real world...This one I just had to chime in on.
Believe what you will...that 484 cam will always be a 49.95 cam with lifters in my book.