I will be putting on some drag shocks this weekend. The rears are on but I'm not sure where I have them. I'm guessing the fronts should be set at 90/10 (60/40 and 80/20 are available). The rears can be 50/50, 60/40 or 70/30. I think I tried 60/40 and 70/30 and had saw no difference. I have since added spring clamps and hope w/ the fronts to be in the 1.50-1.55 range. I have cut a few 1.60 60's but usually it's in the 1.65-1.68 range, and if I use the converter right..dead stomp it and let it flash, the tires will blow up and I'll be in the 1.75-1.78 range.
If it matters the car has XHD springs, Turbo Action 3800, 3.91's and MT 275/60/15 Pro Drag Radials.