Chuck,
With the weight and configuration I think by changing the rear end ratio is not going to present you with any performance issues. I think changing the rear end ring and pinion would be your cheapest route unlee you were already going to change wheels and tires. The fuel mileage will depend on how aggressive you drive it. uprating the hp will burn more if you keep your foot in it. I would uprate it and change the ring and pinion if it was me.
Wick
|