Air cleaner for a 1974 Swinger, 318 2bbl.

Woah! Nice Dart and welcome! Post up some more pics of the Dart!!

I know you don’t want to hear this but when I upgraded my (75) 318 2bbl to a 4bbl, I kept the 2bbl air cleaner for a few years before pitching it. Hopefully someone has still kept theirs for you to put on yours.

I’m not aware of 2bbl dual snorkel air cleaners existing but then you can fill a warehouse full of stuff I don’t know.

Check out this website for more info:
Nick's Garage - Air Cleaner Identification

Perhaps your 318 has been upgraded to a 4bbl already? The opening at the base of the air cleaner is larger on a 4bbl so it’s not ‘easy’ to just rest a 4bbl cleaner on top of a 2bbl carb.