My stock stroke mild 360 build ;)

But before you machine anything, remove the gasket locating pins from the china wall to make sure they are not elevating your intake.
After machining the intake,check the clearance at the china-wall again, there is a chance you might have to mill the intake front and rear as well.

When I built my 360 I had the decks milled so that the KB107s popped up out of the holes .007ish from the .012below deck they fell in at; so that was like .019. My Rpm AG fit "OK "without machining, using FelPro .039 gaskets. I did NOT gasket match.