I would be most concern with acquiring a nice rebuilt/restored Carter fuel pump that has the distinctive button top and one that has the Carter logo "CAR bure TER" .This last logo marking along with the button top is 98% of what you are looking for. NOS are out there but fewer of them to find 43 years after the fact . Finding a NOS one most likely will have a later service date code if that small detail is a concern. We most often overlook flange numbers and date codes on the fuelpump because they are most often extremely hard to read ,many times from the factory have incomplete stampings, and there is usually way too many other more visible issues with the cars that take attention away from this small detail.Bob
