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Re: Rpm question
I checked speed with gps and when i was doing 60 mph gps was at 57 but when i roll across those school road signs that tell if you're going to fast, it reads the same as my speedometer. I timed the truck last night with 12° advanced and I'm still getting 3200 rpm at 60 mph. The engine is under 200° and the carburetor is hardly warm. Gas mileage is about 12 mpg. I'm leaning towards tire size as the culprit.
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