Jeez dude! I did that mod nearly 18 years ago.
If memory serves it went from 19.3 to 19.8 MPG. It was my first ecomod.
I think the old stat was 190 degrees. The old school bus motors are designed to run fairly hot.
I don't think there are any hotter stats available for that engine.
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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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