A-Body Round #2- My '76 Scamp restore...

Do not pump the pedal, do this instead.

Open the brake bleeder.
Have somebody slowly push down on the pedal, hold.
Close the bleeder.
Release the pedal.

It will push the air out, do it a couple times to each bleeder and its done.
I did that way and used a bottle with hose filled with fluid about halfway worked great. The hose you connect to the bleeder loose. I taped the top hose in hole cap it's a vacuum seems to be easy fix. Oh chocolate milk from 7 eleven or QT small 12 ounce worked great lol! Obviously drink the milk first clean it out hahaha. The bottle lets you bleed brakes solo.