I built a 335" stroker, my camshaft selection was a custom grind based on an isky 270 mega cam......221@ .050" 471" lift on a 108 LSA. the tight lsa, helps built cylinder pressure. This is a single pattern grind, works awesome. I think if I went any bigger it would be on the verge of over cammed. Stock 416 castings were heavily ported and polished. If you want a choppy idle this cam has it in the 305, but it needs a high stall convertor and gear as well as spring upgrade. It sure is a fun car to drive and turns heads when cruising....