The .557" MP cam will be a kitten in a 408/416. It is actually smaller than what I ran in my pump gas 10.25:1 416". I ran an Ultradyne ft solid, 259/263@.050 .590" lift 110LSA, and it idled (choppy)at 800, shift at 6,000 although it would rev 7K+. You won't neeed more than a 3000stall with this cam in a stroker, where a 360 might need almost 4000 and a 340 maybe more. Mine ran low 11s, 119mph with 3.91 gears, 89octane... RB