i'm considering doing a suspension upgrade now that i will have a rear end that can handle the abuse. right now i have 6 cyl springs in the front of my car with comp eng. 3 way adj. shocks (set at 90/10). in the back i have stock springs which i believe are heavy load coils and air shocks with no air in them (sounds dumb, i know. but it actually works pretty good). i was thinking of going to trick springs all the way around and puting some 50/50 shocks in the rear. on to my question. how much would this lower my car if any?