Bleeding problems

[mesmydo]

I am having trouble getting good brake pedal pressure. I recently mounted the master and booster done on the frame to clean up the firewall, but I can't seem to get the pedal to firm up. I have tried having my wife pump the pedal before pressing down when I crack the fitting. And I have tried just having her press down without pumping. I have gone around the car several times bleeding each corner and I seem to be getting good fluid but the pedal is still soft. I can't find any leaks letting air back in. Any suggestions would be greatly appreciated.