[mssl72]

A friend of mine had the same thing happen. Bought a '66 Caprice that had 427 emblems but found the same IVR suffix as you, 396, Rochester carb. He bought a set of 396 emblems just as you're doing to put things in order. There were a few different wheel cover options in '66 for full size cars. Wires, mag style, dog dish, full wheel bowtie covers, I guess it depends what look you want. The wheels themselves would've been 14x5J unless the car has the F41 suspension option on it. Then they would be 14x6JK.