Quote:

500+ lbs over the nose is too weak for a HEMI with those long pushrods and heavy rocker arms.




Im with Rich; Im no guru, but everything I've read/researched for roller cams in Hemis indicate that with your cam you'd need more than 500lbs - more like at least around 600-620lbs+ or so open.

Not enough is just as bad if not worse than too much pressure; esp with the heavy valvetrain/pushrods etc.