How many 1976 Plymouth Dusters were made?

Dakota Smith said
I know it has a 340 in it.

Maybe so, but that's not how it was originally built—not even a little bit. That's why you never see a '76 Duster 340 for sale, and can't figure out how many were built; the answer is zero.

(And even fewer than zero Feather Dusters with a 340)