I just got the dart together and put a brake booster from another dart on it. Now the brake pedal does not want to come back up after i use the brakes and it makes the brakes stick. But if i unhook the vaccum line the pedal does come back up, its just stiffer.
Is it possible i have to much vaccum and its holding the pedal down? I have it hooked to the back of the holley 4 barrel carb.
I have never heard of this problem before.
I unbolted the master.cylinder and started motor and the brake pedal returns by itself everytime i push it down, when i turn the motor off and push the pedal down this way it stays down? Now i'm confused. I dont see how the master cylinder could keep the pedal from returning since the rod that pushes on it is not really attached it just pushes.

Any ideas?