Al, today is your lucky day! I have original 1968 air in my unrestored original that has 8 miles on the odometer. If you bring ur car up here, we could hook up a hose between the two and do an air transplant.
1968 air won’t work for the 1967 models. Ma MoPar replaced all early 68 models with fresh 1968 air on Jan 1, 1968, the first day that it was available.