Message: for all 5.9 users It is a good bet that the Opened up Fastman TB will increase your MPH and lower your ET with Blown and non Blown Engines both ,with just this bolt on .. The 4.7 with a Blower does not respond as well with the larger TB as the 5.9 does it can use the extra Air Flow.. But go with his recomendation .. bigger is not always the best..
Buck
P 1
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Subject: FastMan TB