Wanted: Mopar A Body Super Stock Springs

The feedback I've gotten from friends and one restoration shop is that the MP springs in the past lost their arc after only a few years. Unless they've changed in the last couple of years, I'd avoid them.
That might be a good thing really. As I’ve also heard they add 2-3.5 " in height when new. So if they sag they would sag to perfection! Haha