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Anybody know what size/length belt I need to run a 3" upper pulley ? I called whipple and they said they don't know [emoji19] they told me run a string and measure that ... Sent from my iPhone using the svtperformance.com mobile app

I'm dropping a alluminator w/ built heads all Manley internals springs, retainers etc.. also the most aggressive comp blower cams . I'm putting a 2.9 whipple I have the 3" upper pulley anybody know what kind of boost I'll get with it ? And what kind of power I can make ? I have a tri pump...