Kenshin7, in my opinion it's your car, express yourself, everything is fixable. You've probably gathered by now this may not be the forum to research, as ClassicZcars is dedicated to mostly stock, stock restoration, and/or stock-"ish" restomod's of "Z"cars. While it might seem as if we're bashing you, we are actually just grumpy old men who wake up with stiff sore backs from "been there, done that, got the t-shirt". As already stated HybridZ would be the place to start your research. There members have a much greater wealth of information in discussion, experimentation, and application of the technical aspects you're looking at in modding your "Z" car. I highly encourage you to have fun with your car, be it, better motor, suspension, aero-styling (please no bedazzling, mohawks, or pink shag carpeting ). Continue with the research, ask lots of questions, and remember fuction over form always, and keep us posted! However, if form should win out and your just throwing cash around remember who said this and slip me 5K on the backside to finish my car.