Does anyone happen to know what Carb went into 225s in dusters

From the Factory a 225 Duster could have had a Holley 1920, a Holley 1945, or a Carter BBS. what year Duster, which which transmission, is it a California car, a 49-state car, a Canada car, an export car? That'll enable an answer of what carb originally came on it, but since A-body Dusters are now between 44 and 50 years old, it won't enable an answer as to what's on it now.

Presumably you will eventually have the carb with you (like...to drive the car or rebuild the carburetor), then you can get the numbers off it, right?