Hemikiller, thanks for your reply.
You wrote: "Under the NASA hood, it states "STD on Mach 1 with 351-2V or larger engine" and "Available only on Mach 1 models with 302-2V engines" and was a no charge option. However, under the 351-4V engine, it states the hood is included, and under Ram Induction, states it's available with 351-2V and 4V only. If that's all correct, a '72 Grandé could have a Ram Air hood."
I agree for 72 and later the ram air hood gets tricky. My documentation shows that beginning about Jan 1972, functional ram air "Ram Air Induction" aka functional ram air, was only available on 351-2V engines. For 1972 cars built before that, the 1972 Mach 1 with the Q code 351-4V could have been equipped with the functional ram air. "Ram Air Induction" (should be) listed on the window sticker. If not listed just like that, they most likely got the non-functional NASA ram air hood with block-off plates. As for a possible Grandé, it would be interesting to see one!
Ray