bought this car about a month ago. 5.0 auto it has unknown cam BBK headers BBK No cat h pipe Some aftermarket mufflers filter pullies Throttle body spacer plate rear gear is about 3:27.... or close to that It had a wet NOS setup but I have disconnected that. That brought it from 10-13. everything else is Factory. including the injectors When I get home or go somewhere I will actually smell like exhaust fumes on my clothes. When I had my other 94 a year ago it didn't do this. It basically had the same exaust set up as this car. My first guess is the oxygen sensors then i'm not sure what to look for after that. I was thinkin about putting a catted mid pipe on it I'm sure that will help but there has to be something else causing the bad MPG Any thought would be appreciated.