Walter,
I have a 1275 (I checked the ID tag) and it has the same blanking plate as with every 1275 I've ever owned. I always assumed that this was where a mech. fuel pump would go, but why would anyone choose mechanical over electric? Even if you found a mechanical fuel pump that would fit there, you would also have to make sure there was an eccentric on the cam to run the thing. And moreover, mechanical fuel pumps take more horses away from your engine and when you're running an A-series, you don't have much to spare!! /ubbthreads/images/graemlins/nonod.gif