Thread: How bad is your gas mileage?
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Old 06-12-2008, 06:37 AM
JustOne JustOne is offline
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Join Date: Jan 2005
Location: Pearland, TX
Cobra Make, Engine: Unique FIA, 425 Windsor
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Your Plugs may look ok, but you are way to rich! You need to get your car tuned with a wideband and get the car leaned out on the idle circuits and in your cruise range.
There is a very good articel on this in one of the Chevy magazines; google wideband and tuning a car for fuel mileage. With 3:73 gears a 750 MD carb combined with a 540 hp / 406, they got in the low 20s.

Justin
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