CalTracks - Rear Leaf Spring Question

Caltrac springs are pretty stiff as is the SS springs. Unless you plan on drag racing often, I'd skip the Caltrac springs. Pete Bergman at Bergman Autocraft sells springs, you may want to chat with him. I have the Hotchkis springs, and while I was concerned initially about them being too low and also not having a strong enough front segment, I'll have to say I'm very happy with them. Ride quality is great, and I don't get any wheel hop (I have a pinion snubber). If you drive your car on the road a lot, do yourself a favor and look for springs that aren't drag racing springs.
Avoid SS springs like the plague!