WR400 & Edelbrock

Need some help. I'm going to be riding my '00 WR400 in Colorado later this month at altitudes from 7000-14000 feet. The WR is fitted with an Edelbrock non-pumper carb. Can anyone give me a heads up on which needle to use? I currently am using a 19E. Thanks.

You might want to pm "ncmountainman" as he seems quite familiar with the edelbrock.

I did a quick search and seems like lots of YZ boys are into them.

(you might want to use that 17E needle you got)

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