[Dragsinger]

some notes from my experience;

*an anti-roll bar is your friend, I find adding one helps everything.

*the 150-pound spring "maybe" too much. Consider a 120 - 125 range. You want the shock to be about 2/3s to 3/4s compressed at ride height.

*keep preload in the four-link to a minimum. With an anti-roll bar just barely, maybe 1/2 a flat will do the job.

*The anti-roll bar needs the slack just taken out by making the right side downlink long.

* The above adjustments are done at race-ready weight with driver or driver weight in the seat.