This car looks incredibly clean and well optioned. Interesting to see the 2bbl engine got the A.I.R. pump in 1973 but the 4bbl engines did not.
Very Nice looking car, as for the A.I.R. pump on the 2bbl engine, it does not really surprise me. The old 2GC's have much bigger jets than the Primary side of of Q-jet. I have always found the 2bbl equipped engines run rich at idle, and the Q-jet engines actually run a bit lean at idle.
Recently acquired and now being flipped. http://www.stationwagonforums.com/forums/threads/1973-pontiac-catalina-safari.54453/