You sure you didn't visit the diesel pump? And bad gas can come in that form, as well.
FIRST thing I'd do is do what you have to do to "rig" a test gap you can SEE. This is not that difficult. Get a plug, bend the electrode out. Find an old plug wire. If you "rig" the thing so the coil-to gap wire is "in the air" it can be ANY kind of wire, even bare. If you do this "with your head" you can "rig" it so you can see down through the hood gap
If you have not, pull at least two plugs and see if they are fouled.
If you have spark and the plugs work OK throw a tablespoon or so of KNOWN fresh fuel down the throat.
