Fast, thats kind of what I was saying about diminishing rerturns or trading off more bottom than you might gain up top. Still by the same token with a 505 too small a cam could turn it into an 'Oldsmobile' ( all torque and falls on its azz above 5200. 906 based ports are small even for 440" so to some extent you need some duration-compensation.

Thats why i was thinking a moderate rate 278@.050 solid with a fast but still decently streetable ( easy on springs) ramp would be a good fit. Ibwas thinking only go that big because Tex already has 4.10's so he's gonna need /use upper RPM powerband to get to the big end anyway, nonsense changing out his whole drivetrain. Tgat being said too small a ramp may hit that nose-over saturation point too early and force his to drop gear and possibly stall.

NSS guy, can you pm me the specs on that 272/276 Comp roller? I'm wanting to swap to a solid roller and use the super light MRL lifters on the 517, that cam seems close to where i want to be.