Can't get power brakes to work

The pedal drop is the extra push from the booster. So now its a matter of what else could be malfunctioning. If everyting is new/near new then whats left?
Master cylinder bore incorrect? Its not uncommon that an incorrect bore master is sold as a correct unit. Diameter is different from power to manual. But generally power goes up a size.

Upon replacement of all the new parts, bleeding process seemed normal?