Hi guys, my cutlass has a 350 the number on the side of the carb is 17057253---1027--apw.I have another that someone gave me that is freshly rebuilt ,the number on that carb is 740325--1424--ra.they are both rochester carbs .can I swap them or what is the difference between them as they both look the same.

 

if you go to Carburetor.ca, they have all the numbers and decodes, applications, etc.

Or i'm sure other folks will chime in soon