That carb is a 67. In 67, Carb ID was a circular disc with the carb number and date. Example, my 67 is 7027272 with a D7 date (April for D and 7 the year)

The baseplate had it's own casting number to differentiate some differences for specific applications. Some are interchangable, some are not. The baseplate appears to be a 1968 as evidenced by the date code you provided. This base is NOT original to that carb. You can sell that carb and probably fetch some decent money. I would sell the baseplate serately.

The airhorn, baseplate and bowl/body all have specific 7 digit castings per application. For example a 68 HO 400 4 speed will have cast in that small circle on each 1234567 for airhorn and 2345678 on throttle body/base. The bowl/body will also have a 7 digit casting number.

So...Essentially, you are looking to buy a rare carb. You have 3 main parts, each with their own specific 7 digit numbers. The body/bowl must have the correct 7 digit casting number AND 7 digit carb ID number (don't confuse the two) AND have the correct two letter plant code.

Here is an example of a restamped 1968 HO Firebird carb trying to be passed off. If you have been around carbs, you can spot incorrect fonts.



I wished I had a resource that identified the correct casting numbers for throttle bodies, bowls and airhorns for all carbs, but I don't.