1998 Z28 Camaro mileage: 84,000. Hi, I have a Z28 Camaro. When I first bought the car a few years ago, I was getting great mileage (20-25) gal. My car has a carburetor, but has all of that emission equipment for California. I recently changed the O2 sensor, set the timing, and adjusted the carburetor, so I was wondering what happened to my mileage (10 miles per gallon now). So please answer my question, and give me some info on the computer controlled q-jets.
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Tuesday, November 9th, 2010 AT 7:43 PM