Won't Start need advice, Please read....
RedFish Please do not take my comments as argumentative I just thought if I was getting spark it would or should fire. If I came off as being argumentative I'm so sorry...
People that do this kind of stuff all the time and are very good at it sometimes get annoyed when a person who has very little experience with it counters a suggestion they give.
It's not all your fault, or his but just the way it is sometimes.
I wouldn't worry about it too much, as he is probably just not in the mood for it this morning.
Suggestions can be a little overwhelming sometimes, so just try to do as they ask and report back what you find.
The timing light suggestion from 73Abodee (Lance) is a very good start.
This way we know if the engine fires the plugs and when, then we can try to figure out what is going on.
Along with the timing light suggestion, I would remove the ignition box and make SURE it has a good clean ground to the body.
From the description of how it ran before it got parked I would also be very suspicious of plug wires and spark plug condition. (pull one as already suggested) and post a picture of it if you can.
