Dumb question ... most probably

Hi,
on the picture you can see an interference with the pivot for the secondary. On the part there is an ear ... Was wondering if that ear is suposed to be use for something, I can't see any use for it !!!
I can break that ear or buy a carb spacer...
Holley 1850 carb on a Holley Street Dominator intake ... both holley and it does not fit.


thanks