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?
Master cylinder is original equipment, system was bled after new lines were installed. Don't believe the master cylinder could be the culprit here. Only booster was replaced along with valve.