Angle milling "double bump" Chevy heads | The
Nov 28, 2007· I''ve run Bowtie heads angle milled a hundred thousands (") or more without having to mill the intake. we did need to use the thicker intake gaskets (almost twice as thick as stock). I''m sure you can''t even come close to angle milling the doublehump heads as much...due to them being thinner than Bowties in the deck area.