What size Rubber(Slick) Fits 66 Cuda

Thanks for the info guys, I'm looking at the Newstalgia Wheel V-40. These are a straight 5 spoke with a media blasted center and polished outer wheel. They would look great on a '66. The 15 X 7 is only listed with 3-7/8 bs and I wanted to be sure they would fit before I bought a set. Thanks for the pics.8) Not trying to hijack this thread, just sharing info.