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With that small a cam I don't think you will see much with a cam change. You say you don't want to change gear, how about tire? The 30" tires you have are short for 4.11 gears. Put 32" tires on there and adj the odometer to correct for the ~7% change and you should see about 3% better gas mileage. And it's free if you need new tires anyway. Second move would be a belly pan there is a lot of air going under a 4x4 and all kinds of stuff sticking out in the way. Tom
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