My oil burning pig. Pics too!

I've been going through a situation with the decking on the block not being square to the bores due to poor machining. If the block deck is sloped so that the angle is even just 0.1 degrees less then 45 degrees, then the deck and intake surfaces on the head can be square to each other (a perfect 90 degrees), and the intake surfaces can be at a perfect 90 degrees to each other, but there still will be a bit of a gap at the bottom of the intake gasket area that the intake gasket can't make up. A gap opens up at top if the deck surfaces are slightly over 45 degrees.

So, if the block decks are not at at essentially a perfect 45 degrees L & R, or the heads' bottom surface not milled true with an exact 90 degree angle to the intake gasket surface, you can easily get a few thousandths of extra space at the bottom (or top) edge of the intake gasket surface. It looks like your intake gasket surfaces needs to be slightly angled milled to take a bit more off the upper edges than the lower edges. The .009 to .010 milling ratio does nothing to fix an off-angle.