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Old 11-19-2002, 06:49 PM   #1 (permalink)
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Holley has jet sizes in numbers like 66-100, as an example. I need to know what diameter they are. Anyone have a link or know where to get ahold of one?

Thanks,

K
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Old 11-19-2002, 07:26 PM   #2 (permalink)
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Try Holley.com...

I think I have it somewhere here....I'll check.

Mike

[ November 19, 2002, 03:29 PM: Message edited by: mikiec ]
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Old 11-19-2002, 07:32 PM   #3 (permalink)
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Hopefully, you'll have better luck than I did. Couldn't find squat.
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Old 11-19-2002, 07:55 PM   #4 (permalink)
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Holley jets. Try this page on their site and click on the selections for some correlation charts.
http://www.holley.com/HiOctn/ProdLin...cess.html#Jets

REgards,
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Old 11-19-2002, 08:52 PM   #5 (permalink)
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Be aware that Holley jets are rated by flow. You cannot just drill them out to get to a different size.
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Old 11-20-2002, 07:03 PM   #6 (permalink)
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Here is what I'm trying to do...

I bought a holley jet kit that has very jet from 66-100. I need to down size the jets in my carb. I don't know what size jets they are. So, I need to find the size of the jet I have in the carb and match it to the Holley numbering system. Then I can start experimenting with the holley sizes.
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Old 11-20-2002, 07:08 PM   #7 (permalink)
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Lightbulb

I did the same thing. I called summit racing and got the numbers from them. They have a list that tells what jets were used in each Carb.
Good Luck.
Sean [img]smile.gif[/img]
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Old 11-20-2002, 07:11 PM   #8 (permalink)
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You can also pull the jets from the carb. Holley stamps the number on them.
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Old 11-20-2002, 07:44 PM   #9 (permalink)
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Quote:
Originally posted by Bart Carter:
You can also pull the jets from the carb. Holley stamps the number on them.
I was wondering about that. Thanks.
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Old 11-20-2002, 08:10 PM   #10 (permalink)
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New jets have 3 digits and older jets only have 2 digits.
Old #66 could be 66.1 thru 66.9 , so now they rate them #660.
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