4 wheel manual disc brakes?

[GregWeld]

One last thought -- because I just re-read your original post.

Your vacuum is low because of your cam profile... thus you probably have a "hard pedal" and feel like the effort it takes to apply the brakes isn't translating into stopping power?

So -- have you thought about installing a vacuum pump and resevoir... to help with your low vacuum condition? Are you aware of this kind of thing for your brakes? Something simple like this might be all you're looking for - and would make a world of difference.