Quote: I think he meant that the 440 4 bbl was not offered in the 72 rr and if you had one it was a gtx option on the 72 rr. The 340 and the 400 were both equipped with the 4 bbl. The Petty blue 72 rr that was on ebay had to be the gtx option as it had the 440, but he said i was a very rare rr. I am not sure if the gtx option in 72 was a code on the fender tag like the rr option on the volare but would make sense to be coded like that.
There is no code for a gtx option on a 72. If you ordered a 72 with a 440 they put gtx badges on it. That's all it is nothing more.
