Mine was a 572, now 575. Had to go .010" bigger last time.
Cam is a solid roller...276/284 at .050". .672"/.651" lift. It's a mild lobe, but makes good power. Mid 9s at a buck forty on motor at 3800 lbs. Well into the 8s on a little nitrous.
I like em rowdy. To me, a weekend fun car isn't supposed to sound like a station wagon. The cam in my truck is bigger than one posted above and in an engine about 100 cubes smaller.
Lifter selection is where a lot of people cheap out and then complain about reliability. My hemi has a good set of Isky Red Zone lifters in it. They've been flawless for years.
My Chevy has a cheaper set of Comp Cams lifters, but I don't expect them to live forever. I'll change em out after a while and keep going.
Weak springs and/or real aggressive lobes will also kill lifters. All compromises and things to pay attention to. All the more reason to call Dwayne. He's a wealth of knowledge on every aspect of cam selection. Making power is just part of it...having something that doesn't eat itself every 50 runs is another.