1966 Barracuda 273 build

Unless it has been changed, the small bolt pattern would be 4''. The wheel size could be 13 or 14'" and 4 1/2'' or 5 1/2'' wide. After finding what you have there are several options you have available. My 65 formula S has 14'' small bolt pattern wheels which are 5 1/2'' wide. My car will be stock and I am going to use the stock wheel covers, but there are some options I really like. Good luck