I have A 80 firebird. The front end is all apart. planning to put it back together. The car came with 3.8 v6. I have A 350 sbc (iron heads aluminum intake) and 700r4 for it. My question is what coil springs should i use? I have the v6 springs and springs from A 79 403 olds car. I am planning to make A fiberglass hood and inner finders for it so that will probably lighten the front of the car somewhat as well. Maybe the fiberglass parts and aluminum intake will offset the extra weight of the v8.