Need Help With Springs

[jfgbody]

New member in need of advice.Im right in the middle of a frame on restoration for my 1978 cutlass(touring car with daily street action) and once again ive hit a brick wall.Im having a helluva time guessing what shocks and springs to shove under this thing.Ive got a sbc w/ iron heads and an aluminum intake.The Stock weights are as follows;gvwr:4560 gawr F:2270 gawr R:2290 iI just bought a set of 245/35R20 iroc wheels.The wheels add an extra 248#'s of unsprung weight to the car(62#/wheel--124#/side).Ive upgraded to the big sway bars front and rear, bushings front and rear and bolted all of the braces i could find to it to help stiffen the car up a little.My intensions are to maintain the stock ride height within 1/2" + or - .I read a moog spring chart that pointed me in the right direction and Ive got an idea of what front springs look good on paper (moog:5662 =706#/in) (stock:5606 =420#/in).Im hoping to hear from someone with a similar setup or any feed back from anyone running these springs and Im also interested in hearing what shocks you are using.As for rear springs and front and rear shocks,I dont have a clue what to use.Im looking to stiffen up the ride but I dont want to over do it.Any and all input would be greatly appreciated.