Best method of making dual scoops functional?

When I had my 71 Dart, I had the low profile Mopar Pro scoop on it and I made it functhinal using a Moroso carburetor pan sealed to the hood with a velocity stack on the Thermoquad with two filter elements stacked on top of one another. I didn't worry about making it so it could close off. I just got some really dense craft foam and cut it to tightly fit the scoop opening. I carried it in the trunk and would stick it in the scoop when it rained. Worked good.