I replaced the brake booster and master cylinder on my 2006 Ford Mustang Base 4.0 V6.

After replacement the brake pedal barely travels/moves. I mean almost like a brick wall.

We bench bled the master cylinder. I'm not sure what is causing this to happen. It's like the pedal is jammed.
I loosened the master cylinder bolts and the pedal seems to get some movement. But when tightened down, the pedal is stiff and will not move. This is with the car on or off!