I know of only one FGF in my area. A beautiful triple black '67 or '68. I'm not sure of the year because he was leaving the gas station as I was pulling in last summer (not in my Firebird at the time). The car was throaty and very straight. I hope I can run into him again. I have not seen any besides that one in the 14+ years I have lived in my home.
He is the reason I bought my Firebird instead of the Camaro of which I have had a few.