My Five-Minute Engine Swap (318/340)

Update:
Found a WIX website where one can search for filters by size. Found a WIX #42070 which is listed for a 1967 Dodge Charger 426 CID which is the same diameter as the AF-305 but is shorter at 2.120" which will give me .63" of added clearance (2.75" - 2.120"). Perfect! Also fits 360, 383, 413 from the '60's. Two of these were used on the dual quad 426 CID Maximum Wedge motors.

WIX rates their #42044 @ 160 CFM and the shorter #42070 @ 120 CFM.

How much clearance does one need anyway? In my case, even with the shorter element the lid of the air cleaner is just kissing the hood insulation pad.