These bulges are the ones you are talking about right?
I dont understand what you are talking about with the gasket match. I thought you're supposed to gasket match it on the head, but to leave the air intake (that mates to the head) port alone. (For home porting purposes) due to the air intake port usually being slightly smaller and the head slightly larger, it will help force flow down the intake on the head.
If any of that makes sense... for what its worth, I wasn't going to touch my air gap intake...