Checking Intake Manifold Fit After Resurfacing Heads

He has tulip valves- a few cc's there
you need to cc both ends of both heads in case they are slanted- not uncommon even on virgin teardowns
nm I do not think piston rock is going to give .005 vertical
I have a BBM with FT pistons (D dished- 915 wedge heads) that far out with .051 gasket- no problems