bleeding brakes on a sunbird

Hello all I have a 1994 Pontiac Sunbird 3.1 V6, which I had a rear wheel cylander that went on it and the master cylander was bone dry. I changed the wheel cylander, and proceeded to bleed the brakes, with someone in the car pumping and me at the bleeder valve. My question is the left rear and the right front brakes won't bleed a little bit comes out but the pedel inside the car does not go to the floor when it is loosened. So I am wondering if possibly if the master cylander needs bleed and how to go about doing it. The car has the abs off the master cylander and has 2 bleeder screws on it. So if anyone could help how would I go about bleeding the master. Or if someone thinks I might have another problem.


Thanks in advance,
Jeremy

The master cylinder has to be bled first whenever the system has been emptied. Is the brake light on in the car? Sounds like the proportioning valve may be restricting flow, make sure the light is off if not try to equalize the valve by opening a bleeder on the half of the brake system that didn't leak and apply some brake pressure until the light goes off.