Whats everyone using for stoppage?

[RUDEDAWG]

Hey everyone, I am currantly working on my braking system cause the dang thing dont wanna stop. Everything is new except the steel brake lines and the prop. valve. I put a big block in a 1/2 ton with manual brakes and before the truck stopped VERY WELL. I am thinking about putting an aftermarket dual diaphram power brake set-up, question is 1:do these work 2:how do you mount them(do you need a bracket that goes from the fire wall to the booster). Any pics of any thing you are currantly running will be greatly appreciatedd!