Installed these drop springs 2 weeks ago (1.75" drop). Rear was sitting way to high ,stock height at the very least. Front dropped perfect. So I waited 2 weeks to see if it would settle. It didn't so I cut 2 coils off each side. This helped but I was thinking of going one more. I also did the "rubber hose mod" which helped a bit. I am still undecided on taking more off the rear or not. Need some feedback! Seems to have settled a bit since I cut the coils.

Stock:


Dropped with 2 coils cut in the rear:

 

I like a small bit (~1") of rake. That's about how mine sits currently. Everyone's different though, just do whatever you like.
Going that low up front, you'll want to trim your bump stops or run strut mounted ones since there is probably very little travel if any as it currently sits.

Your car looks great though! I'm a bit biased toward 82-84 T/A's, and clean 15th AEs are few and far between and yours is the only lowered one I've seen. Good job!

 

Don't bother dropping it any more. You have to remember that the back end will drop about 0.75" once you actually sit inside the car.