Thanks Stang - I checked as you suggested and all the springs/valves are in perfect running order.
What I did notice however is that the intake and head are not exactly flush where the valve cover mates. the intake is apx 1/16th of an inch higher. This could account for slight misalingment and hence the rub.... Other than that the engine is healthy and running great.
I have ground some additional material from the covers, changed the
oil, pulled the pan and
oil pump and given them a complete inspection and cleaning. Now she is all buttoned up and we will see what the next few miles show.
Thanks
-John