Im want my car setting up later on in the year cause im getting bloody married so i need all the money i can get. I work in a garage so do you think i should get the CO mixture set back to where it is. Im a bit pissed off with that so called bloke who works on proformance cars. At the end of the day i dont wanna damage my car/engine. I must admit when im driving the car there is bits of black soot on the back bumper and lights.