Available adapter to use 340 air cleaner on Carter BBD?

I plan on using my 318 two-barrel Carter BBD carb on my 340 during break-in, but would like to sport the 340 air cleaner at the same time. Are adapters available to mix the two parts? I have a ThermoQuad for later. Thank you. P.S. No, I am not going to run 2 two-barrels.

DSC00010.JPG

DSC00831.JPG