Not going to help you much in the rear. The Fox springs would be good up front. Get a set of Morosso Trick Rear Drag springs with an airbag. That would be your best bet.
Honestly, it probably won't help out in the traction department until you're cutting 1.60 60' times or better. a drag radial tire would be better worth the money.
I got drag radials last week..... and I have read the fox rear is a better than the 95 for the strip.... suposedly its an inch lower. I already have badass weight transfer on the front....people are always shocked