The scoop you speak of was the "dual snorkel" from 1972, and was a stock item on the Dodge Demon. They found their way onto a lot of A-Body's including the Dusters.........the other most poplular style scoops for the A's were the Duster twin scoops on the 340 models.....2 scoops, one on each side of the hood.........In 69 only, there was a special set of twin scoops on the first ever "Cuda" with a 440 under the hood....they were like the 340 twin scoops, but much shorter and mounted back toward the windshield.
Of course, the popular "Hemi Scoop" has been used on lots of A's as well...........when properly molded in, they look pretty good.
I think the dual snorkel looks best......but I'm a bit biased......... :burnout: