74 Duster Factory Hood Scoop
Darter6, this is the factory holes that came in the hoods with the double snorkel hood scoops. they are 4 inches in diameter and DID NOT have a fresh air seal made into the air cleaner. they only had seals that went around the edge of the holes, and had lips that stuck up so rain would not blow into the holes.
this is the seals. I think year one has them.
that should be what will be legal if you use the scoop on the duster.