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Old Apr 9, 2002 | 05:46 PM
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gas mileage

New to a 360 or 390 ? in a 76 F100. It does a steady 8.5 mpg is this about what to expect? Thanks
 
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Old Apr 9, 2002 | 05:49 PM
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From: Corydon US of A
gas mileage

Sounds about right, could maybe be a little better, if has the stock 4v carb it probably is right.
 
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Old Apr 9, 2002 | 05:58 PM
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gas mileage

Mileage sounds low to me. I don't have experience with that engine but my 78 F250 supercab 4x4 with a 460 (it weighs 6,800lbs dry) gets a -minimum- of 9.5 mpg. That is in all-city driving. Highway I get 12 and pulling a trailer (3 horse) on highway I get 11.
 
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Old Apr 9, 2002 | 06:30 PM
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gas mileage

Every 390 I have been around got 10-11 mpg, but not much more.
 
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Old Apr 9, 2002 | 07:08 PM
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gas mileage

Do you know what the rear gear ratio is? A low gear can acuse lower MPG.
Dave there is no stock 4 barrel carbs on Ford trucks with FEs.
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Old Apr 9, 2002 | 07:12 PM
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gas mileage

On the highway Really babying it 14 around town 11, 74 F250 Camper special 390, auto, edelbrock 1406, msd 6a, pertronix, large cap, autolight 45s gapped to 45.

Bob L
 
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Old Apr 9, 2002 | 07:58 PM
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gas mileage

 
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