there is a picture on here with a white one, I think it has sportlines cut. It is really low.
let me see if I can find it.
edit: I can't find it, but I would remove the isolators.
edit: found this one, but its not what I was talking about
"i had sportline springs on my black 95 mustang and i always thought the back was lower than the front and i thought it looked stupid...
so when i got sportline springs for my white stang, before i put them on, i chopped on 3/4 of a coil in the front.
this is the result....." http://i3.photobucket.com/albums/y83/94cobramike/IM001720.jpg
DO NOT heat the springs. Your car will ride like A$$ (it softens the rate), and if they weren't heated evenly, you could have an uneven drop. I would try removing the isolators, then, if it's not low enough, I would try cutting 1/2 coil at a time until you get what you want. If you cut too much, you could put the isolators back in to regain some height.