I have 17" American Racing Torque II wheels on my 00 ss now, I can't decide if I want to try to go down to 15" or 16" wheels to be able to fit a bigger size street drag, should I just go ahead and order the MT Streets for the 17's, or go down a size on the wheel and up a size or two on the tire? =\ I have a set of Eibach sportline springs to put on as well.