KnN filter number for 273 commando 4bbl

Hey guys, I've gotta order a filter offline for my '66 barracuda with a 273 4bbl, it has the original small air cleaner with the carter AFB (you know what im talking about). Whats the correct KN filter for this guy?

Can't imagine why you want to suck a bunch of sand and dirt into your engine in exchange for no performance benefit at all. See here to cut through the BS and hype; K&N filters are a scam.

(And until you remove the throttle plates from your carburetor, the air filter will not be the bottleneck in the system)