Hey guys... got a question for you guys and looking for advice. Have a 95 gt with 5.0 and i am having problems passing emissions. They are doing a dyno emmisions test by putting it on a dyno and probing the exhuast fumes at 15 and 25mph. The first time i failed hydrocarbons at both speeds an failed nox at 25mph. I replaced my coil since the connections were a little corroded and that got me past the nox but i was still failing for hydrocarbons. I had read that #1 cause for high hydrocarbons was timing so i changed the timing a little bit and the hasnt helped with emissions but she does run better now. I checked my codes since i noticed my CE light cycling on and off on my way back from the emissions test. I got a code for 02 sensor on right side. Now that would make sense but the exhaust is a true dual and they were probing the left side. Oh and im barely failing but less than 100 points. Any help or suggestions would be helpful. Thanks guys