I'm running softer springs than you are so my car sat lower. It lowered itself by like 1/2 when I changed the front springs from 8k to 6k. I dont think it will be as drastic on coil-overs with 8k springs up front. Have you taken out any of the collars? My coil-overs still have about 1.25 inches of thread and another 1/2 if I take out the collars.

Also I have about another 150lbs to add to the front of the car. I/C, radiator, A/C stuff, P/S pump, Bumper beam, headlights, core support etc etc.