No brake pedal

ok so I replaced both calipers hoses and master cylinder on my 73 duster with power brakes. Bled brakes stating with passengers rear moving to drivers rear and then pass front and finally drivers front. Well first was master cylinder. Went thru a quart of brake fluid. No air coming out and fluid is clean and new. Still had no pedal. So I crimp off all 3 hoses. Pedal is high and hard. Start taking one at a time off. Rear brake pedal drops 1/4 in. Front drivers drops to the floor. Then pass front again pedal drops to floor. I'm very confused please help.