I would check to see if your getting spark from the wire. Get your hands on a wire tester, or if you can't, hold the end of the plug wire over the valve cover ground and see if it sparks. If you can determine that the wire is not sparking and you know you have a good wire, you can turn to the distributor. Check the cap, rotor, etc for anything obvious. If it's nothing like that, I hope your good with a DMM.