One of the best modifications to the exterior is to simply add a nice set of wheels. I chose the ROH ZS wheels for price(about $950), great looks, and they are made to fit 82-92 f-bodies. The sizes are 17x8.5 front and 17x9.5 out back. For tires I chose the CompTA ZR's for the front(255/45) and Nitto NT-555R Drag Radials for the back(275/40).