1G Master brake cylinder failure? Bad brakes

[ZeGaNe69]

I used to have a ABS on my 1G AWD. I deleted it with triple-couplers. Couplers are instead of rear brakes proportioning valve. It looks like stock non-abs brake line now.
So I assembled brake lines diagonally from master BC. Right front and left rear are together, left front and right rear are together.
From triple couplers the brake lines are both 50:50. The middle one is IN, left and right are OUT`s.

I have replaced the brake fluid and bleeded the system like 5 times, but still, the brake pedal is like:
1. Without vacuum in booster, the pedal is very stiff. Approximatly in half the way the pedal is end off the travel. Can`t press no more further. Does not mather how much I try.
2. After I have pressed the brake pedal without the vacuum in booster and the pedal can`t go any further, I start the car (foot is still on brake pedal). Pedal travels more further about 1/4 and it feels kind a soft.
It is like: first 1/4 of total travel- pedal is like nothing. Next 1/2 of total travel brakes are goming on and last 1/4 of total travel the pedal is end of it. It is 1/4 away from front end panel.

Why are brakes so shitty? No leaks. No air in system, I assume. Also have Evo 6 booster, but this problem was before the booster swap. Booster swap actually made this problem a little bigger.
Brake pedal rod`s distance is correct, no excessive clearance.
I disassembled the master brake cylinder, everything looked OK.
All new discs, pads etc.
Am I missing something? Does the abs BC is really different than non-abs? Still air in system?
Non-abs mbc acts differently than abs mbc?

 

[PMWeather]

I've used a non turbo booster multiple times on previous cars had no issues. It is possible the master is dead. Under assisted pressure it can't hold enough pressure if it's leaking internally, which would be secondary seal on the primary piston. Mine did this but it only did this under 2 occasion. 1st the master was junk. 2nd my wheel bearings were blown out. I'm using VR4 3kgt brakes so the fixed caliper setup and turning on bad bearing depresses the piston back. Anyways sounds like you master is trash.