need suspension tips

[Oldschoolpony]

Help. My cars rear wont dip.!!!!!! Suspension set up is as follows:

Upper and lower battleboxes.
SSM uppers and lowers
90/10 fronts
50/50 rears
Eidbach drag launch spring kit.

PROBLEM: Cars has very little drop in the rear. you push down on the hatch and car drops like 2 inches .. Looks like a low rider, I cant get the weight transfer thing right !!!!!!!!! any ideas? does eidbach have drag springs for hatchbacks, vs coupes?

1988 GT.