71 Duster Hood Scoops

Looking to learn something today.
Did the Duster twin scooped hoods have opening for fresh air to the engine compartment or were they just show. I picked up a factory hood for the twin scoops but they don't have openings for air to the engine. Are there pictures of the fresh air carb setups for this hood?
Looking to learn. Thanks All

I may have found my answer.
Back in Jan. of 2010 this looks to be address here at FABO. There's a lot of info about dusters and adding holes that weren't there from the factory.