05-05-2007, 01:42 PM
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CC Member
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Join Date: Jul 2003
Location: Redmond,
WA
Cobra Make, Engine: Superformance Brock Coupe
Posts: 178
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Not Ranked
Right on Rick! Flow, not hole size determines how jets are "numbered" . The reason is that a specific drill size does not always give the same flow, as you noted, because of the varying degrees of sharpness at the edges of the drilled hole (the reason for the countersink) can affect the actual flow rate. Carb jets are flowed at the factory and then numbered. Badger
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