Been digging all day & beat.Carb.ID please?

1972 Stage 1 automatic.

 

Thank ya, just found it to in old thred.
Appreciate it though

 

Huh, 71 is only year Stage 1 I never owned,wonder where this came from.
Odd the code is 72 auto with CA emissions

 

Fritz it's a 72 stage 1 carburetor, correct for an early build 72 stage 1

 

Is the 2 at the end what makes it a Stage 1?

70: Rochester
4: 1970-1975
2: 1972
2: Quadrajet Federal Emissions (5 is for CA)
4: Buick
2: Automatic (my Riviera's # is 0 so is this what indicates it's a Stage 1?)

MC: Broadcast code (what the build sheets called for)

1971: carb built on the 197th day of 1971 (as already mentioned, July 16, 1971 which was a Friday if that matters)

 

Funny that it happens to be 1971 (197th day of 1971)

 

May/may not be too early for @donny1973's car. They probably didn't make many runs of '72 Stage 1 carbs and the one @grisby has is only slightly after Donny's car was built which IIRC was fall, '71.

 

My '72 Stage 1 convertible was built on the first day of production in August 1971 and it has the exact same date code, 197th day of 1971 (July 16, '71).

Anybody have a list of the known date codes for '72 Stage 1 carbs? This July 1971 batch of carburetors may have been used for awhile since the '72 Stage 1s were relatively rare (728 hardtops, 81 convertibles).

 

I have a 7041242 for a '71, dated 1960, First day of '71 production? (not for sale)
Who has a list of all the batch dates for these carbs?
Troy

 

Bought this one from John. One (big) box checked off.