[psuhillbilly150]

Car is an 89 notch w/408 motor. I finally have the money to stuff an 8.8 up under the car. I am going with moser setup full spool, 33 spline axels c-clip eliminators, with 4.10 gears.

Now for my suspention,
Granatelli adjustable upper control arms
Megabite lower control arms
shocks are the MMR coilover setup with lakewood 50/50 shocks and QA1 10-150 springs. Torque boxes have been strengthened.
I am running Weld prostars on the back with MT ET Streets 26x10.5 on a 15" wheel.

The opinion I am most interested in is what spring I should run in the rear. Right now I have a set of 4 cyl springs in there that came with the car. Should I be looking for a spring with a 150lb spring rate to match my coilovers or stiffer or lighter? I asked this same question to the guys at MMR but I want to know what others think.

Thanks guys,
Bill