71 Duster Hood Scoops
I have a bone stock '70 Swinger 340. The holes are 4 1/8", and have a small grommet with the lip up into the scoop. I'm recovering from knee surgery today, but I'll get out there in my garage for pictures if it will help clear things up. My car has the black wrinkle finish, and the factory "unsilenced" air cleaner. There are no foam or other ducts from the scoops to the air cleaner, but the scoops are shaped to direct air into the sides of the air cleaner base on the sides.