This E-tube has a slightly larger main bore and less air bleed holes providing a better fuel signal at the jet. Improves performance across the RPM range, but especially on bottom end and mid range. You will want a main jet between .035″ and .037″ and low speed jet around .024″ depending on how much you can bore out the carb venturi and which cam you use. This tube is legal in both Superbox and BP. It is not permitted in Box Stock classes.
We ship same day if you place your order before 3:00PM PST on Monday through Friday (subject to part availability). If placed after 3:00PM it will be shipped the next business day. The map to the left shows shipping estimates for UPS Ground Shipping. Typically these shipping estimates are accurate but JOES does not guarantee these estimates, and if the estimate is not accurate it is up to the buyer to take the issue up with UPS.
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