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Re: 1984 F250 6.9L Towing
Posted to HD/Fleet Forum on 12/23/2005 3 Replies

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10-12 lbs boost is a LOT for this type of upgrade. That is getting close to doubling the amount of air (mass) in the cylinders. To take advantage of that you must also add fuel. and, if you are burnin... Login to read more.

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