RPM air Gap problems?

The ones I've used were all fine, but sometimes an intake needs to be cut to fit the heads properly. Especially because of milling for a certain chamber size. If they dont take off the material from the intake flange side of the head too, the intake wont fit. I dont consider making holes larger an acceptable way to get one to fit. Although the poster w/ the bolts hitting the outsides of the ports was right on how to address it. I've never seen that before but anything's possible.