I have a 74 Duster with a mild 360, headers, and dual exhaust. I do not have an h or x pipe in the system, just straight from engine to rear tips. I drove the car yesterday and noticed it blows smoke from the driver side exhaust. It smells like gas, but I am not sure. Is it possible for the car to be rich only on one side? I have about 1500 miles on the build and it does not use oil.

Thanks

My car 74 Duster mild 360/904/3.91 13.44/101.54 Son's car 75 Dart Sport 318/904/4.10 looking for a 360 or 408 2004 Dodge Ram 1500 Laramie 5.7 2010 Dodge Challenger R/T Classic B-5 6 speed 2010 Jeep SRT8 for the little wife