REAL Stopping power on a 1970 Chevy

[bikertim]

Ok -- what is the best way to get better performance out of my brakes? I have converted to disc on the front -- rebuilt the rear drums -- but performance still isn't what I want it to be. I have power brakes -- and an adjustable proportiioning valve that made it so i could adjust the front to rear bias. Works ok but....

Are larger rotors the way to go? More piston calipers? Disc on the rear? More modern power booster and master cylinder?

I don't want to break the bank here, but I don't want to destroy my truck because the stopping power is weak. I live in the Phoenix AZ area, land of the haul a.. and slam on your brake crowd, and 70s technology isn't up to speed on the stopping front.

Many of you have spent tons of money on this.... what shoudl I do?!?