Super Stock springs are VERY old tech. Yeah they may work decent, but there are better options. Seems to be pretty common knowledge that the springs just flat are not as GOOD as they used to be either, like the quality of the spring steel isn't what it was.

If I wasn't going to a Cal-Trac or similar, instead of buying Super Stock springs, I would scrounge some junkyard springs and build my own spring packs. There is NOTHING special about them. Stiff in the front, loose in the back.....nothing more. That's why the front segments are usually shorter, in an attempt to stiffen the front