[ck67goat]

So I just got back the PHS on a car that will be my next long term resto project. I held my breath as I opened the letter to see if the car was a run of the mill or special optioned car - hard to tell by looking at the car itself because the original owner did all sorts of crazy mods to it - in fact had it not been a convertible, it would have been compacted for scrap if I had not intervened to save it.
Back to the PHS, as I sit here having to justify to my wife of the major time/expense coming for another gas guzzling garage queen, at least so far she's gone along with the fact its a convertible, plus she'll get to drive often (with the dogs of course) - though she doesn't quite know the full story of the cost involved yet.
So I was relieved to learn that the car was in fact a 428 HO option car with an automatic. Knowing this will help explaining to my wife that it is a rare car indeed and we will be saving it for posterity sake plus the car will hold its value....
Out of curiousity, any educated estimates on exactly how many of these were made? If I'm reading the PHS full size engine production correctly, there were about 434,326 400 and 428 engines made in 1967 of which only 7,424 were 428s (non police equip) which, if my math is correct, means about 1 in 59 full size cars came with a 428. Add to this a total of only 1,457 were HO engines or about 1 in 5 428's were HO or about 1 in 298 full sized Pontiacs in 1967 came with a 428 HO. Assuming the proportion was consistent throughout the full size offering (which possibly may not), that would mean of the 5,856 GP Convertibles made that year, about 19 or 20 were equipped with the 428 HO (both manual and auto trans options).
I know that this production breakdown is not an exact science, but if anyone has more information or some sort of current registry, I'd love to hear from you!
Thanks