I had 5 1/2" travel in the front of my Dart, since installing the 434 I put the bumper back under the A arms and now have 4 1/2". After installing the Viking shocks at the first T&T I tightened the front way up thinking with the extra power the front needed to be slowed down. It didn't like it, after loosing it up some (tighter than the 90/10's) it ran 1.40 on a marginal track.

That's not smokin' I know but my car had never been down this track clean on a T&T night until the Vikings were installed on all four corners. The 408 on a very good track went 1.38 with 90/10's on the front and 9 ways on the back, bars in the bottom hole, no preload, just touching the spring.