If you suspect a bad head, these numbers aren't too spooky -- after all, if you do have a cracked head, compression will be a little low on that cylinder, with no leakdown indications or bad rings or bad valves. Ditto for a bad head gasket, not unheard of at your milage.

I'd expect some increase with a valve job anyway.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!