Sir Firebird,
It is number matching for a early Trans Am, which, for the years 1970-1973, can go for very high prices.
Any carb for a Ram Air III, Ram Air IV, 455 HO, or even 455 SD pull very high dollar.
Look at 1977-1979 Special Edition Trans Ams going for 30 grand.
Early Trans Ams, like 1970 to 1973, and including the SD 455 '73-'74 Trans Ams, are pulling up to a hundred grand.
Some, like a 1969 Trans Am convertible, pull way over that figure.
1970 Trans Am part prices are way high.
A set of JW (correct coded for the 1970 Trans Am) Rally IIs, used, needing a restro, go for over $2500 a set!
Remember now, Trans Am production for say, just 1979 was over 117,000.
Trans Am production for 1970, was 3,196.
1971 Trans Am production, was 2,116.
1972 Trans Am production, was 1,286.
These are alot less than any year '77-'81 Special Edition Trans Am.
Big difference vs over 100,000 made for one year.
Just giving you some info.
George