Finally got my first ABody!!

Great looking little swinger!!

I had the same issue with the 4 wheel drums when I first got my /6 71 swinger.

I just bled them really well, and adjusted them all until they just barely spun while free spinning by hand, then took it for a test drive and they stop really really good.

I can take people for a test drive and can fool them into thinking I have disk brakes.
I can stab them and stop on a dime with no side to side sway.

4 wheel drums can be really decent brakes if you make sure you have no leaky lines or wheel cyllinders, a good master cyllinder, proper adjustments and a good bleeding.