Carb help

[r0ckstarr79]

So, I was in the process of rebuilding my carb, and got to the point where the carb kit was not the right one for my carb. So, obviously, my carb has been replaced and is not the original carb that came on the 66 riviera GS's. Here is the number I got off the side of it. Can anybody gimme any info on this carb? And, is this carb any bigger or smaller than what the car should have on it?
I know its a Rochester Q-Jet, but thats it.



17057204AYN

[RED GS 1]

Starr,
I ran the number and came up with a 1977 C-10 p/u truck. Not sure of the engine size,or the cfm?

[r0ckstarr79]

thanks! the 77 c10's had what, a 350? I wonder if this carb is to small for my riviera... thanks for the help...