1985 Ford Escort brakes are dragging or locking up told

I loss my brakes totally abaout 1week ago, got back home, ok. Went and got brake pads, front. Also a rotor, 1 caliber, front brack hoses, brake booster, and master cylinder, (which I wasn't very impressed with if you know 85 escorts), they don't give you a new master cylinder just pieces of it and then you basically rebuild IT yourself. Don't even know if all the parts He put back on are alright? I help pump up brakes while he bleed them, fronts, I got a good pedal. Drove it around the block testing the barkes they stopped really great! Good to go, Right? NO. Now I've got to much pedal the more you drive it the more pedal you get untill, they are locked up and you don't go anywhere. If he takes and crackes open just one of the brakes lines at the master cylinder, you can go again for a couple miles and then it starts locking up agian. Any suggestions? Thanks.