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If you are willing to go to the expense and effort of custom-ground cams, why not run with the big dogs of MPG? Get a set that make your engine an Atkinson engine? That's all the "Atkinson" engine in Priuses and Ford hybrids have done.
The trade-off:
20% more efficient
35% less torque
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2000 Ford F-350 SC 4x2 6 Speed Manual
4" Slam
3.08:1 gears and Gear Vendor Overdrive
Rubber Conveyor Belt Air Dam
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