I am trying to locate a picture of air cleaner # 6423206 (standard) AND air cleaner 6424505 (heavy duty) These air cleaners where used in 1967 for vehicles with A.I.R air injection They where used on Birds with the 4bbl AFB carburettor with A.I.R..................326 ENGINE The only way I will be convinced what they really look like- is if the original decal is on it..........with those part numbers I mentioned above............. There just seems to be so much confusion out there in my opinion- I hope someone has photos- so I can put this to rest and so I can source the correct air cleaner. Thanks in advance guys................