I have ladder bars that are up on the top most hole. The rear shocks are DA Afco modified by Menser. IFIRC, I have 110 lbs springs in the back. I can't get any more travel due to the shock length.
My next move is tighten up the fronts 6 clicks. I will continue to tighten up as needed.
I'm assuming you have Afco 3850's with 5" total travel. With 2" compression and 3" extension. A weaker spring like a 90# will shorten the compression distance at stationay ride height. Giving the shock more extension distance. Greater stored energy as a dded benifit. I start full tight on the fronts. I've had QA1 stocker star and Afco doubles with stock valving on the front. Both needed to be nearly full tight.
Doug