Technical 1948 oldsmobile brakes

Ok this is where I am , 10-2007 double bowl master cylinder under floor, new rear brakes and adjusted, front disc brake upgrade , new brake lines , No Brakes , pedal goes to floor and back up

 

You must bleed air from master cylinder before installing it .

 

Have you adjusted the master cylinder pushrod?

 

Did you use residual pressure valves in the brake lines, 3lb front for discs, 10lb for rears? They are needed when the master is lower than the calipers or wheel cylinders.

 

Yes bled master cylinder , yes took play out of pedal , residual pressure valves ? Never heard of those will research