I have a problem with my Holley 600 (4160)

Today, Aaron and I finally got to mount his Holley 4160 (LIST 3310-4) 750 cfm carb to the Mopar M1 dual plane intake sitting on top of the 360 we put in his '74 Duster. For the throttle shaft and linkage to clear the choke pocket and top of the intake, we used a 1" plastic spacer. He bought the aluminum Mopar ribbed with black krinkle finish valve covers and matching air filter lid. It looks like we are going to have problems shutting the hood.

What are these drop down air cleaners you are talking about, where do you get them, and can we still use the Mopar lid? We are also installing Lokar throttle and kickdown cables. Will these get in the way if he uses a drop down air cleaner?

Thank,
Jerry