Hi 67 Hipo Fans,
Just a few comments on this subject. As Bob points out we know how many cars were built by Shelby with A/C If you need exact details you should buy a 67 registry. The Ford info sheet also points out power steering was not available which we also know not to be the case at least for the Shelby build. Ford built less than 500 "K" equipped Mustangs and with the engine option quite expensive it is easy to see why it was the last year for the Hipo. It is doubtful many of this build would have the additional expense of A/C For a good look into the details Kevin Marti's books provide info.
Hope this helps
R.R.