[spoiler][/spoiler]I ran SS springs until last Fall. The fastest it ran was a 9.36 @ 146 and the fastest 60' was a 1.34. I weigh 3225 w/ me and am roughly 900hp. I was starting to have a lot of issues with the car hopping and it literally looked like it was going to break the springs on the hit. I switched to caltracs and d/a shocks and things have gotten better. My next move is to take some rear out it. Currently a 4.88 gonna go to a 4.10 over the winter. (68 cuda)