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Old 02-13-2012, 08:48 PM
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JRatto JRatto is offline
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F4 vs F2 emulsion tubes?

Did a search but found nothing yet. Single cylinder cc is 541cc, 48mm Webers, 40mm main venturi.
does anybody have specifics on what F4 tube does vs F2?
From looks of the F4 it appears to be a leaner tube.

Just wondering if F4 tends to lean a part of powerband vs the F2

Thanks
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