intake milling

it's per .0048 milled from head=1cc, and for every .0048 off the head.. you need to remove .0095 from the intake face, be it heads intake face or the intake manifold itself.

so you're off .0364 a side wether it the heads or the block deck, 'or even how the intake was cast'

OR .047 considering you are .020 high still