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Old 04-30-2020, 06:29 PM   #12
Kurt in NJ
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Join Date: May 2010
Location: on the Littlefield
Posts: 6,159
Default Re: Flat head RPM range

The 39 with the 60hp (4:44 rear) didn't mind going 65, though it did bring the fuel mileage just under 20 mpg, kept to 55 it was 25 mpg----- and downshifted to second when speed on hills dropped to 40, the 60 hp needs to be above 2500 sometimes, and drove it over 70 on the parkway to keep up with traffic and get a head start on the next hill
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