Smoke is partially burned fuel. partially burned fuel means a few things:How do you increase power with out the smoking so damn bad?
Mine was a pleasure to drive until this trip.....
....50 MPH headwinds from Oklahoma all the way to North Dakota KILLED my mileage and the poor little 4BT was smoking the whole way trying to push the ol' '79 brick through that wind.
How is that possible???The only downfall is if you have too much fuel at idle the noise can be unbearable at idle,