What's the Original Carter Fuel Pump # on a Commando 273?

'65 FPC says M3673S (Chrysler № 2495 527) in all A- and B-bodies with 273 or 318 engine. The M3672S (Chrysler № 2495 528) is listed for B-bodies "except hemispherical engine". The '64 FPC clarifies this; the M3673S is shown for all V8 A-bodies, and also for the non-power-package V8 B-bodies except where the M3672S is called for—the M3672S is shown for 361 and 383 engines in B- and C-bodies.