I have a 85' dodge ramcharger, and i have adjusted the carb, replaced the spark plugs, and catalytic converter. I am still in the dark as to how to get it to pass. Someone mention that racing fuel burns clean and if adding it to your fuel you can pass. Anyone know if this works? I have also tried the addatives from autozone etc, and it didnt work. Help.
The area in which i am failing is: HC(PPM) 169 rather than 127 at 15mph and at 25mph i got 118 while the max is 98. So the HC (ppm) is were i failed. I am also in Northern Cali