My engine doesn't make enough vacuum at idle, so I am using a Summit vacuum reserve canister. I am also using an ECI vacuum pump, hidden under the stainless panels. The hoses are routed through a vacuum sensing switch that runs the pump only when the vacuum drops below about 21 inches.
77 Monza power brake booster. 86 Camaro 4 wheel disc master cylinder. The difference in braking is a huge improvement compared to the factory non-power setup. This, in combination with the Monza ventilated rotors, calipers and brake pads, makes my car brake very well.