Many cam grinders will grind less exhaust lift depending on the cylinder head. Less lift will generally have less exhaust reversion. If looking at shelf cams the ones with more exhaust lift generally are Chevy grinds. Got that info from Chet Herbert many moons ago.
You also want a cam ground on a Mopar core designed for a .904 lifter. Otherwise you will get a Chevy grind with less performance. There is a reason many GM guys use the .904 lifter...
