There are making-it-work conflicts, but this isn't one of them. It isn't so much of a later style carb - too short for our later air cleaners; it is more of a non-USA carb. But, modifying an air cleaner assembly so that it..., yeah. Maybe it is a 2F air cleaner bracket and a 2F intake at home, but judging by the earlier insulator, I'd say that it is an F intake.
Some of the brackets (later '73) have the return spring out of that space. Maybe your right, and he needs to modify (bend?) the return spring part of the bracket. The photo (aboove) looks like the return spring was installed on the bracket, both sides. It can be installed like it is oriented on the 2F. He needs to get that bracket installed on the two intake mounting studs, on the top of the china-casting throttle body. Maybe modifying the part, but, not its function.