I was looking to get rid of the 70's float and sway for a more modern driving experience. I went with 1.03 PST's and Bilstein shocks all around and, so far, am thrilled with how it drives. My rear springs are still stock but seem well matched from what I can tell. I will say that I also did a full front-end rebuild including reinforcing the K-frame, boxing the LCA's, offset upper bushings, Delrin lower bushing, adjustable strut rods, and reused the 1 1/8" Hellwig front sway bar. I also went from 14" tires to 17". I don't consider the ride to be harsh at all although my daily driver is a 3/4 ton GMC truck so my tolerance may be a little skewed. I took my wife for a drive a couple nights ago and she was impressed with how it felt from shotgun although she has not been behind the wheel yet. Now I need better front seats as the car stays planted but the bench seat is fairly useless for going around corners!