A true Charger HIPO 273 66 Dart?

Only if the line ran out of Charger 273 lids and used some leftover Commando lids... SNAFU rather than standard practice.
My 65 (3rd owner) came with a Commando air cleaner as well. Dad was the second owner and asked about it when he bought it in 75. Guy said it came that way when he bought it off the lot in Orem UT.

Used to be a member on here that had a 65 Barracuda 4bbl Charger, that his grandpa bought new.