I can't argue that point, a typical nascar tire is 28"x12"x15" so that means they have 6.5" of sidewall, since the M & H specs out at 29.5"x14.3"x17 I will have 6.25" sidewall....although thats still considerably more than a typical 25.5"-26" " Pro-Touring" tire diameter....and when looking at the defination of a "Modern Pro-Street" they seem to be running 18"-20" diameter wheels, so where do I fit in with this...oh crap, I'm building a Red Headed Step Child of a car....Send me to the island of Misfit Toys/Cars..