Originally Posted by Elkyblack
Are you referring to the xr276hr cam? And how would I get a custom grind?
Yeah. Just call up comp cams and tell them you would like to order a custom grind. The xr276hr ground on a 108 LSA or 106 LSA. The tighter the LSA will have choppier idle and will produce less vacuum. I'm not sure if you're running power accessories. The tighter LSA will also have better bottom end and mid range performance. Top end will suffer as you see in the dyno sims Tech prepared.