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What needle is this?

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Old 08-24-2014, 06:52 PM
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What needle is this?
After looking at several pictures, I thought the needles that came in my carbs were Factory Pro. Just wondering what you guys think?

In the picture below, I have the believed Factory Pro needle (top) and a known Dyno Jet needle (bottom).
I can take close up pictures. I can also mic the length if needed.

Name: 20140824_164846.jpg Views: 159 Size: 87.8 KB
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Old 08-24-2014, 07:50 PM
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You are right! The top is Factory Pro.
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Old 08-25-2014, 05:03 PM
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Thank you for the answer! I appreciate it.
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Old 08-26-2014, 08:16 AM
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The bottom needle is a Dynojet. Factory Pro needles have 5 grooves, Dynojet has 6.
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Old 08-26-2014, 08:45 AM
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Wow. Those tapers are a lot different. Depending on the slide spring stiffness, the Factory Pro needles look like they flow more everywhere.
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