Don't drill your gas port yet. That's always a last resort because it's permanent.
Nonsense, #37 drill, 5-44 tap and set screw, allen key, lock-tite, and your back to no port at all...doesnt take too much imagination to guess what has to happen after that.
Then again, the shortest distance between too much gas and the perfect gas pulse is an adjustable gas block.
PRI makes a nice one.
