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View Full Version : What main jet are you 426 guys running>?



2001400exrida
04-16-2011, 05:36 PM
Just wanted to get some input on what jet most of you 426 piston guys are using.

I've got mine setup right now with a 175 main jet. i'm on a stock header pipe. Seems to be pretty close but i was thinking about going up a couple and seeing what happens.

honda400ex2003
04-16-2011, 06:46 PM
go 180 and see how it does, thats a pretty common size also.

steve