The good thing about your goodyear tires is that they fit on a 15 inch wheel. The mickey thompson land speed tire and dunlop vintage formula one tire fit on a 18 inch wheel and those wheels are hard to find. rumor has it nate jones has good stash of mickey thompson tires, and if you have noticed pretty much every fast car at bonneville runs mickeys. Good luck in your quest. And I would still try and talk to the tire gurus tom burkland, al teague or marlo treit.