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View Full Version : What jetting size



foxracing51685
10-02-2007, 06:17 AM
I have a 2005 400ex with a white brothers slip on, k&n filter and i just bought the dynojet jetting package and i was wondering if anyone could tell me what you think a good size would be thanks.

Colby@C&DRacing
10-02-2007, 08:07 AM
Use the jetting guide in the instructions