Help! I have a 1972 Plymouth Duster 340 w/ factory electronic ignition. My # 8 plug won't fire. I replaced it w/ Bosch Platinum plugs, New cap and rotor and a new wire set. I took that plug and switched it w/ #2's plug and #8 cylinder still does not fire. I switched back to the old cap and rotor in case the new one was faulty. I first noticed it when I Put the exhaust back on the open headers (Hooker Comps) and one tail pipe sounded different, that exhaust was nuch cooler and there was more condensation comming out of that pipe (clear water not antifreeze) and you could smell a raw gas like smell comming out of that pipe. I found out it was the one when I squirted each header tube w/ a spray bottle set in stream and #8 did not sizzle off like the others. Can some one help me fix this? I don't have a lot of money to throw at this in parts or tools.