260E M103 won't start...

[ps2cho]

Drove to AZ from CA for the weekend...car drove fine. Had some issues with coolant temp getting close to red line during traffic jams, which I posted earlier. Started the car after it sitting for 2 days (took 3 attempts before it fired...which was a little odd. Usually fires first time after a 3-4 seconds). Drove it home 380mi and this morning it would not start. I cranked and cranked foot to floor-- did it about 6 attempts before giving up.

Home from work...so what should I look at?

1) I cranked, pulled the plugs (which are new as of 2 weeks) and did not look wet at all.
2) Little if any gas smells from exhaust.
3) I have spark.
4) Popped the upper chamber test port on fuel distib and there was pressure. Tightened, recranked and pulled port again and pressure, so it was not old fuel.

The heck is going on? I couldn't have blown a HG because she drove home fine without much of a hitch.