My boy is doing a little port work on the 289 he's building for his Ranchero. Been 30 years since I ported a set of sbf heads and just want to verify that he can cut this whole lump out of the exhaust port. If I remember right it's for an air pump hookup and we don't need it. I don't remember having a hole in it before but the hole seems to go no where. I don't want to tell him to cut it out and have him ruin the head cause I told him wrong!