The first mistake was getting Bosch CRAPnum plugs, but it should've at least fired over. I think you should check your wires (INCLUDING THE COIL WIRE) with an ohmmeter to be sure they're okay. Just because you have new ones doesn't mean a thing. They should measure 4-7kilohms PER FOOT. Check the connectors on each, too.
If you wanna check for gas getting up to the fuel rail, just take a Bic pen with a rag over it and press the Schrader valve to see if fuel comes out. You hear the pump kicking on, right?
Another dumb question, are you doing the firing order clockwise or counterclockwise? It should be the latter, and like said above, check the order all the way down to the actual plugs. Be sure you start with the #1 cast into the cap. Good luck.
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Capri306, Moderator, The Mustang Works Online
1979 Mercury Capri, 5.0L -- C4 -- 2.73
1987 Mustang LX Notch