Yes, my brother found a N94 single 4bbl air cleaner at '93ish Spring Fling. He was about to fly off to Botswana with the peace corp, and was low on $$$$. Galen paid for and I got the air cleaner. Friends in high places!

Anyway, I have yet to see another N94 single 4bbl air cleaner. The two part numbers has me puzzled. The air cleaner I have "resembles" a '70-'71 style snorkel-less 340 unit with block off plates over the openings (like a "TRANS AM" 6bbl air cleaner), but has a wide lip around the top & a "SHAKER" seal. Since two part numbers exist I'm thinking this is the 340 unit & the 383 unit would be similar & the starting point would be a typical dual snorkel big-block 4bbl air cleaner.