Jim got it right. They did not make a specific ram air hood, they were all 400 hoods with the pans, foam, and open scoops in the trunk. Dealers were instructed to add these and do a little trimming of the under hood bracing which was usually a cobbled up job done with tin snips. It is not even actually required, it just seals the pan better with the trimming done.
But to suggest that’s why it doesn’t fit is ridiculous. And really, that’s like saying a rally II wheel with a trim ring is not the same wheel as a rally II wheel without a trim ring and maybe that’s why it doesn’t fit your car. LOL Robert just doesn’t like it called a Ram Air hood, which to him suggest that you are selling it as an original hood from an original Ram Air car.
Good luck with the sale, I think it’s a great deal for the hood.