I don't recall Pete getting much into the details of his elliptical valve job. In fact he was pretty much tight lipped on the details of his Super Stock valve job he shared the flow numbers in his second book... Probably with good reason.
These pictures are of an elliptical valve job done back in the 80's by one of the top Pontiac head porters. The top cut mimics the bottom cut just not as pronounced due to the small top angle.
|