I found this article really helpful in my research to figure out what was correct for my 70. I obviously did not stick with the 14s and landed on the aftermarket 15s, but it's a great article.
B-Body Road Wheels & Trim Rings Facts vs. Myths - Mopar Connection Magazine | A comprehensive daily resource for Mopar enthusiast news, features and the latest Mopar tech
B-Body Road Wheels & Trim Rings Facts vs. Myths - Mopar Connection Magazine | A comprehensive daily resource for Mopar enthusiast news, features and the latest Mopar tech