Blue Flame, I went through every page in the PDF file that you liked to in the first post. The only drawings that I could find we're of V8 heads in the power train section. Please if you get the chance tell me what page the drawing of the 6 cylinder head is on. How much cfm was gained by putting in larger valves? I have heard quite a lot on the ntake side but haven't heard anything about what happens when 1.60 exhaust valves are installed. Thanks for the close up picture. Jay
