Well, using MF front ends tends to restrict the travel of the front suspension over stock by a bunch....Typically you get about 3"-3.5" of travel with a MF front end.

We have found adding as long of front coil overs as possible really helps with consistent 60fts...This is why I had a set for sale earlier this year. I went and ponied up for a longer set. I have forgot what we got the front end travel back to with the longer coil overs, but I want to say its around +4.5" of travel now.

As far as Caltrack's go, I put weight on the drivers seat, brought them up till they touched, and added about 1-2 flats pre-load. Haven't touched them since, and that was a long time ago. Best 60ft so far....1.35!

Only thing I tinker with on the rear is tire pressure and shock clickers...