Yes that would be. The 6 in the fourth position represents the year. But could have been on a early production 67 car.

SOLD PENDING PAYMENT

35 years of experince tells me that matching numbers is a pipe dream. The manufacture always reserves the right to sub parts. While that carb does code out as a 1966 model it's not like they were throwing them away when 1967 production started .

I have told this many times. Original owner of a 1973 Vette 454 was losing points at every event because the carb was coded as a 350 carb. He was only owner of the car. He wrote GM and they told him that production schedules and parts supply often required substitute parts. He was happy to meet me because I ended his 10 year search for a numbers  454 1973 carb, manual trans too. Even though GM never built it that way he was happy to put it on and restore his points.

Sorry, my post sounded like I was disrespectful to the numbers match car guys. That is not it at all, I think this is the pinnacle of the hobby and have a lot of respect for people who restore this was. I was just trying to point out that when part numbers were put on parts 60 years this was done to aid assembly and repair. Most if not all cars had parts change over the years so putting them back to day one is a great accomplishement.

Doesn't a numbers carb actually mean that the matched engine will run better, provided everything else is in spec? Are they not all adjusted and jetted slightly differently?

I don't care about points, cruise lawyers, and dumping thousands of dollars into original #'s parts (but if I can get them reasonably I will) ... but I do like an original looking car a lot.