And here is the stock set in my 2000 Mercury with a 4.6 that was getting 30MPG stock at 65MPH, and with a lean setting of 16.1 reached 35MPG @ 65MPH, but had a serious poer drop...and running stock engine and tune with 18inch fat tires, and I still have a fast hot rod as well.
And I plan on getting the stock 2.73 gears and the second chart is the same car with them:
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