Brakes on 1992 Ford Tempo

[2thdr2b]

I have a 1992 Ford Tempo. I replaced the front calipers and rear cylinders including new pads and shoes. I also replaced the master cylinder. I am now trying to bleed the brakes and only one circuit is working. I am able to bleed the brakes on the front right and rear left but can't get anything to happen on the other circuit. It seems like there is too much pressure on the pedal and I can't push the pedal far enough to activate the secondary piston in the master cylinder. The lines are clear as I am able to blow air through them. There are no leaks in the system. Any help on getting the system bled so all 4 brakes work would be helpful.

[UnexplodedCow]

First off, bleed the rear brakes first....and do you know how to bleed the rear ones? I know it's a dumb question, but it's still relevant. Bleed Right rear, left rear, right front, left front, in that order. You're bleeding out the bubbles from the longest to shortest line.