Readjusting the valves was my last ditch effort to fix to problem. No go.
I did, however, mill the manifolds during the engine rebuild to seemingly get a better seal to the head. Maybe that caused the problem. I suppose I should pull the manifolds off again and measure the flatness of the head mating surface.
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[This message has been edited by L6Ragtop (edited 08-04-2003).]
