Quote Originally Posted by DennyW
Cam duration is what kills the compression, at least on what you are talking about. I run over .500 lift, with a short duration, matching springs to the cam, and regular push rods, and rockers. I have had no problems. On a stand mounted shaft rocker assembly, many go to the adjustable rockers, because when someone does a valve job, they don't take the time to measure and grind the stems for the difference. I do on all the ones I build. Therefore, I don't need adjustable rockers on my hydraulic cam. Solids is a different story. The goal is to have the right pivot angle, and keep the rocker centered on the valve stem, and...to put the hydraulic lifter in the center of the plunger position when installed. 2nd stage cam, 115lbs on the seat should be good.

ps: Besides...erik is a Chevy man, and Dave has his guy do that stuff.... Just joking fellows...
Denny,I might be a Chevy guy but I can tell you that big block Ford will take big block Chevy roller rockers.