And this half coilover / half cut-spring mess in mounted on stock shocks? :eek4:
The combination of no supension travel, low compression damping and rediculously high spring rates are all part of your problem. I can't picture a more dangerous combination.

I want to be able to help you....but you'll need to drastically re-think your plan.
You'd be better off - seriously - with a matched shock and spring set from Eibach [Pro-Kit] or H&R [Cup Kit].

Both systems will lower the car about 1.75".
You'll still have a clean look, but the suspension will actually function properly.

Most importantly, a matched spring and shock set will be designed to handle the stresses placed on a car with lowered suspension.

Furthermore, the impact on camber and toe will be minimal, and your car will behave properly again.

In the mean time, beg & borrow to get back to stock ride height. By the sound of things, your current "setup" is a genuine hazard.