1964-65 Barracuda question

The 150mph makes it a 66 and ONLY a 66 with a Commando 273 (Formula S or not). There will be no cutout in the valence because there isn't a valence. The rear axle also will not tell the story because most of the 66s still had the 7-1/4. The VIN won't tell you anything, either. Only the fender tag and broadcast sheet will tell and I don't have the codes handy.