Will port & polish affect mileage?
03-06-2003, 07:46 PM
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Will port & polish affect mileage?
Just a quick question-
If a port & polish is performed on a cylinder head, will it affect the gas mileage?
Thanks!
If a port & polish is performed on a cylinder head, will it affect the gas mileage?
Thanks!
03-07-2003, 07:31 AM
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Yes
Anything that increases HP will affect gas mileage. Not necessarily because of the modification, but because if your truck is faster, you'll be on the gas more! 
Mike
Mike
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