Brake bleeding and pedal height questions

[rechinca]

All new lines in the front, reman booster, new MC and correct (factory) PB bracket. Truck is a 1971 that was manual before and crap conversion was done by PO. Booster and MC came from NAPA. Combo valve is the previous CPP PV2 unit that was used on the conversion (that would throw you into the steering wheel with the slightest pressure). TRUCK IS PARKED NOSE HIGH ON A SLOPED DRIVEWAY.

Question 1.
I can’t get fluid to bleed through to the rear lines. (Haven’t tried the front yet). I even tried a vacuum pump and nothing. I got a small amount of old fluid and a tiny amount of cleaner fluid to come out, but really about 2-3 oz total from both sides. I bench bled the MC, but as soon as I pulled the plastic plugs, fluid started coming out of the ports. Did I just allow it to fill back up with air before I could get the lines installed? What is or could be causing the no bleed? Is it air in the MC or is the slope and empty system full of air that is killing me? Is the sloped driveway causing me issues? I’ll take any shot at it. Never worked on a dry system from the start so it unchartered territory.

Question 2.
Is the brake pedal arm supposed to rest against the rubber stop on the plate under the column? Mine doesn’t even com close with the pedal just barely higher than the gas pedal. Seems that it should not be that low. On the MC side, it is a deep pocket for the pushrod from the booster. I used one of the little gauges to set the depth of the booster pushrod to about 1/16” of the MC and there is very little free play in the pedal.

I know these are easily searchable questions, but in reality a lot of guys come on here with the same questions and then never post up what the actual solution was.