bleeding brakes= wheel cylinders

If you have self-adjusters, back up and stop hard many times. That should tighten all the shoes. Jack up each wheel and try turning it while an assistant gently presses the pedal, just to make sure you get some braking.

Insure parts were assembled correctly. I just removed my 64 Valiant drum brakes and found all adjusters installed on the front side of the plates, even though parts are clearly marked "L" and "R". Short and long shoes were all mixed - 2 short linings on LF, 2 longs on RF, short & long reversed at rears. But the real reason it pulled is that some yokel thought the "grease catcher" cup on the backing plate was supposed to be packed with grease and it got all over the LF shoes.