pedal to the floor no stop

[shock tube]

I finally got my 87 t-type running. it has 160,000 miles. It's all origanal except motor at around 90 thousand. It runs good but when i step on the brake the pedal goes to the floor and the car only slows to a stop. i can't get the brakes to dynamite. It has new rotors, shoes, pads, drums and wheel cylinders. Is this a power booster or possible a master cylinder problem? The car has been sitting for the last 7 years, although brakes are since i,ve got it running a month ago.

 

[Glen]

Make sure rear brakes are adjusted properly. Gravity bleed system with fresh brake fluid then manually bleed and flush old fluid out. If still no pedal suspect master cylinder.

 

[shock tube]

I already tried the above that you listed and problem still persisted. I was hoping for an easy fix and not the master cylinder. Thanks for the info