I know that they had 2 part #'s for the scoop. I went down to the Dodge dealer many years ago and got a brand new duster hood scoop in a mopar box and it bolted right to the duster hood and fit the contir of the duster hood.
The dart sport hood is no way near the same shape.
So that eaves me to believe that they had 2 scoops one for dartsport and one for later year dusters.
If no year dusters got the scoop then why did they have them in the parts book to sell?