Finally got around do performing my compression test. I have no idea what the car's history is before 240K miles, the valves were no where near adjusted correctly, uses a bit of oil (although not much at all if I keep the oil level closer to the lower mark on the dipstick it seems) and it won't start below 20 degrees so I was a little concerned. My results:
360
340
350
330
380
I'm not sure what range they should be in, but that has got to be pretty good for 260K miles. If nothing else, they are all almost within 10% of each other. I used the $30 Harbor Freight tester (worked great) on a warm engine (driven to operating temp in cold weather and sat for about an hour or so) and used the glow plug holes. It reached max. psi after 10 cranks (shot right up pretty quick too: about 100 psi per crank until it reached about 300 then slowly built up to max.)
Does anybody know the compression range when new?