| all he did was remove the guides. For a street application that is not good. You "will" stick the valves due to over exposure to temperatures and no lubrication on that part of the valve stem leading to a week valve. I only do this to cylinder heads that are meant for a particular racing application. His modifications on the intake and exhaust port are zero to none. He didn't straighten any side walls...judging by the other pics it seems he didn't even move the bridge back or even narrow it enough on the intake port. The exhaust port is still really small. I suppose for a street car its ok but its not going to be a question of "will" the valves take a shit...but "when" If anyone wants any images of my work feel free to email me. In about 3 months I plan to have the first VG cylinder head CNC'd for street performance and race. Both heads will have a different style of port both on the intake and exhaust.
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