Need to order the front coil springs .Car is 4 link a arm fully loaded 2650lb 50/50. Viking dual adj. 110 lb, rear. The car has 450 lb 7 1nch now but they require a lot of spring compression to achieve proper ride height,plus they are junk.I know what the manufactures recommend.Those that have experience ,would you use 475/500 7 inch or a 400425/ 8inch spring .This will be a box car maybe ss/super gas, This will not be a very fast car,i am not concerned with travel, mostly consistency. Its a small block 580ish hp,glide,as big a tire as I want ,currently 14x32 with 4.88 dana . What are you guys using,hoping Dave Hall or Al or Keith Richards will chime in. Car is a 71 cuda with 113 wheelbase