Rear end alignment issue 1969 cuda

Check out the front eye bushings, is it my imagination or are they different?
For all the time it takes,I would drop the springs and place them side by side.
As to tracking, the car following has to be positioned such that the driver is dead-center on your car's centerline;otherwise parallax will mess him up.
Back in the 70's A-bodys were like Novas, lots of them were known as dog-trackers.
I agree with those who mentioned a thrust-angle alignment; the sensors will pick it up right away, and the tech will tell you where the issue lies.