[Grampy]

First of all - Thank you all for the help.

The solution turned out to be the coil. Just replacing it with a new one got things running again. I would have thought it would be a gradual failure resulting in a weakening spark that would be indicated by declining performance.
Also, in thinking about it, I don't recall even hearing about a coil failing before.

Anyway, in addition to the replacement, I'm going to check on some of the other suggestions brought up just to keep everything shipshape.

Thanks again,
Tom