Originally Posted by fast68plymouth
Unparkerized cam....... probably MP.

The MP lobes are smooth and stable, which = more rpm before the lifters get upset.

I would absolutely expect the MP cam to rev higher before the valvetrain got unhappy than the XE275HL.

That makes sense.
Thanks!


1970 Super Bee prostreet. 383, SMR 727, Dana 60 4:88. Building a 512 low deck.