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Discussion Starter #1
I'm looking for information on Holley needle and seats. I recently hit a local speed shop for a new needle and seat for my Holley Avenger 570.
They gave me one labelled NEEDLE AND SEAT .110"
They told me it wasn't the rigt one but it would work. So what is the 110"
part ? What is the impact ? Haven't left the garage yet but it idles better...
Can anyone shed some light?
Thanks
 

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Premium Member
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1,330 Posts
Should refer to the opening in the seat. Larger seat will let more gas into the bowls faster.
 
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