The residual valves are inline, a 2psi going to the front and a 10psi going to the rear. There is no proportioning valve any where in the system. I've adjusted the rear brakes, checked the fluid level and did the test for the booster. It does go down slightly when I start the engine so I assume that it is working. The motor is stock and as yet I haven't checked the amount of vacuum that I have. This I will do tomorrow. Other than that I'm open for any more ideas. Keep them coming, there's got to be a solution.