First off, the computer in the Turbo runs that engine rich when you boost it. It also does it in the SRT-4. That's the way they keep the cylinder head cool under high boost, so the more you run the turbo, the worse the gas mileage will be. If you just go on a cruise and don't boost much look at the tail pipe, it will be brown, no go on a hot rod run and look at the tail pipe, I'll bet you it's black.
Mike
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