nope, car runs poor i already changed upstream o2 sensor which was looking bad, i guess from all that lead crap and downstream looks just as bad, i had never changed them in the 2 yrs i had own the car and i run at track once or twice a month with a 1/4 tank of leaded race fuel, car is running poor, at times theres like a delay for 1 or 2 sec when i give it some gas but at wot its not that bad, also lately my gas mileage sucks, i changed plugs and wires so thats out of the equation
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