I'm at a loss, I bled the dual master cylinder on the vice it's for a late 70s p30 "power drum"...I have residual valves close to the master cylinder..my push rod pushes the booster in only about a 1 to 1 1/4. And I made the rod with the pedal all the way out and the booster all the way back to the normal position. Anyone who has done an under the frame mount please help.
