Quote:

Quote:

I was running .640 lift and 7800 rpm... never had
any issues with them using a roller cam... by the
way, they are Crane
EDIT
They seen lots of 8000+





do you prep them in any ways ??? would you hone the blue dye from in side the rocker ????? could they handle 720 lift ???? at 8500???



I really doubt that they would live at the spring
pressures you would need and those revs... I would
look at TDs