Super stock springs are for drag racing. They raise thr back of the car too much for good handling, and they’re actually too stiff for good handling as well.
As for checking for the T/A casting, seems silly because any Mopar purist would know that they never made a T/A A-body. So it wouldn’t be correct even if it had one.
Correct me if I'm wrong here but doesn't the super stock spring package also include an extra spring on passenger side to help offset chassis twist under hard acceleration? Good for straight line, not so much for handling.
