New brake system - no pressure...

Let me rephrase that - it's starts pushing fluid from first 1/4" of pedal contact clean to the floor, so if it's not stroking the full length of the cylinder I need to change the ratio of the rod attachment and I'm not doing that.
Some of the pushrods are adjustable, and if not, you can get an adjustable one. What I was getting at though is you may have an incorrect master cylinder. Being hard headed gets you nowhere with diagnosis.

One last thing and I'm done. Is the master cylinder level o the firewall? A lot of these mount so the front of the master cylinder points up. If that's the case, you will never get a pedal because it traps air at the tip of the master cylinder. You need to level it out to bleed it correctly.