Is this cam too wild for power brakes?

Valkman said
With 5 in-Hg of vacuum at idle and it max's out on 9 in-Hg, so I'm thinking the cam is culprit.

Yeah, I think you're right. Mine is around 13-14 (absolute minimum for power brakes), and my brakes don't feel exactly right. I'm swapping over to manual.