The NACA hood was not standard on Mach 1's. It was a no charge option, therefore most have them. It was not fuctional without the ram air option. The non-NACA hood was standard.
I believe staggered shocks were not available on 351 2V and smaller engines.
Standard interior was also available in Mach 1. They did not necessarily have the Mach 1 interior.
my 1972 grande has staggered shocks and its a 2v 351 ,so the mach1 was different with this option?
Was your Grande an export to the land of OZ or a state side car?
It is my understanding that the sport suspension was an option on all Mustangs no mater the engine.
I think the exports may have gotten the heavy duty as a standard ,maybe?
Don ! You got me !! For sure !!! I was rethinking every thing I have learned about stangs since 1967 !! Your name wouldn't be "Uncle B.S. would it? lol