New to A bodies, not to Mopar

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Ok, so here are a few pics of what this project is. I wish I could have seen it better in the warehouse (the lighting was very poor). It needs a lot of parts and work; but the bones are good. Underneath, it is very clean; and I suspect this was a Western or Southern car. It has a Wisconsin title, but there is no way it was a Wisconsin car. It has quite a lean in the right rear, and springs look de-arched, compared to the left, which have a slight arch to them , as they should. I checked them and they are not broken. I will be replacing them, and I want the back end in the air a bit; as I would like to fit bigger tires in the rear. Any suggestions?
Welcome to FABO, good looking project you have there.
As far as lifting the rear end up, I would go with 002/003 Super Stock springs.
I did it to my Dart Sport, and love them.
Your car has a '70 to '72 Duster/Valiant front clip on it, if you didn't know.