Having a brakes problem, if you guy wouldn't mind helping. The short story is my pedal (followed by my brand new booster and E32 master cylinder, new front calipers and rebuilt rear calipers) is firm. But I'm barely getting any assist and the pedal travel stops before the car does. No vacuum leaks and the check valve seems to be working fine but I still suspect it simply for matter of old age. I have my theory but I want to hear yours. Thanks!