Yes. 13 427 4 speed 2+2 models in 1967. I posted a pic of a partial GM document a few posts above that states exactly that! No maybes about it. Now the production numbers post reads 12! I've only posted that pic and posted 13 total cars about 5 times in this thread, but at least 12 is almost correct. Lol  

I believe I can pay to have GM historical services do a search and tell me the exact number of convertibles. It might be expensive. I may do just that at some point.