rear brake drum adjustment clearence drag ? problem ? 74 valiant

You do know drums get hot pretty much no matter what, right?
Those look like brand new shoes so it doesn't surprise me that the adjusters are all the way in, and those shoes don't look overheated to me.
What does the drum look like, any blue on it?
If not, run it because the pulling isn't adjustment related but more the surface of the drum and shoe related.
It's also totally possible that since you can back the adjusters all the way off and drive it without the pedal going to the floor that it's probably all new shoes all the way around and they have not "broken in" to the drums yet. (causing tightness and possible pulling)

If you know what you are seeing you can sand the high spots on the shoes to help get them closer to the same curve as the drums and very likely solve both problems at the same time.