Maybe a voodoo 60434 solid roller will make some good power. .600/.600 255/263 @ .050 110/106 Not sure if it is worth the $750 for what power I will gain. Could shave a little off the heads as well to get the compression up to 10.5:1
I am in the process of replacing my PP 508 hyd cam with the Voodoo 60434. It makes some serious power - about 50HP more than what I got with the hyd cam. Torque is way low. Here is a build MRL did with that cam... I am basically duplicating it on my 416.