TR7 Head

["Byron N. Brashears" <brashears@hughes.net>]

I was driving though the Angeles Forest in the 79 TR7 and got a little
to aggressive. When the 45 mile trip was done I could hear a bit of
valve chatter. The head has less than 2K on it and I rebuilt  the lower
end about 500 miles ago. When I checked the clearances I found two valve
had gone well below clearance right in the center of the head both were
at .001 and should be .008. It did not overheat and I kept the Revs
below 4.5k. Any Ideas or clues?

Byron