I am using the goodyear bill boards with vintage style decals which I had made ( that reminds me I told Nick I would send him a set of four decals). I would say the tire perform okay and they have some fine cracks in the side ways and the tires are two years old. They are tricky in the city at low speeds as they tramline some but rock solid on the highway at any speed.
the sizes are the ones listed on the goodyear race sight, the have a listing for cobra 427 front and rear. I do not remeber the size of hand but I can have a look at the car.
Your car looks like mine, and its best to email me directly as this website is extremely slow
rocksauto@sympatico.ca
cheers
Rocco