Did you HAVE the springs installed, or did you do it? If someone else did it, did they orientate the springs in the proper position.
My Eibach Pros were installed at a shop...I ended up with 1-1/2" drop at the rear, but only 7/8" to 1-1/8" in the front, and they just never settled down.
I finally removed them myself and found that the lower perch has a special notch in it for the end of the last coil to DROP into...guess what...they had ther springs turned enough so that the last coil rode over the top of that notch. I DID remove the isolaters, put pieces of bicycle inner tube over all the end coils and re-installed.
Doing this got me an ADDITIONAL 3/4" drop for almost 2" in the front! I love it now!
Hope this helps.