A true Charger HIPO 273 66 Dart?

I had the opposite. Car has been "in the family" since new and it is a 1966 Barracuda. The original air cleaner was a "Charger 273" decal, despite being a Commando 273. Factory error. Happens (Happened). Plymouths were Commando 273 and Dodges were charger 273.