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Old 02-09-2010, 11:09 PM   #21 (permalink)
Ford Man
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Join Date: Jul 2008
Location: Russellville, KY
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Just as has been said before if you're lugging the engine too much you'll know it by the way it responds to acceleration. Shuttering and vibration would be signs you're putting too much strain on the engine at low rpm's.

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