no fluid to rear

When I was filling a brand new system, I bench bled the master and then installed it. I opened all four bleeders and put a cup under each one.(DOT 5 is expensive and didn't want to waist any) Within 10 minutes, I had fluid at all four wheels.

If you blew through all the lines and they are clear, then you should get fluid to the wheels. Open all the bleeders and see what you get.