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Holley 2000-3000 carburetor question

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Author  [Modern View]

10-28-2015 12:59:46

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Can I take a C9NN9510A carburetor off from a 2000 and remove the number 43 jet and replace it with a number 58 3000 jet and use it on a 3000?
didn't know if there was any other differences between the 2000 and 3000 Holley carburetors. I have a really nice 2000 carburetor and would like to install it on my 3000. Thanks

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Sean in PA

10-29-2015 14:20:52

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 Re: Holley 2000-3000 carburetor question in reply to JASON IN MICHIGAN, 10-28-2015 12:59:46  
I believe the higher hp numbers for the 3000 are from a combination of different jetting and a higher max rpm, but looking at the parts pages, the 3000 Holley carb shares the metering body with the 4000 carb, not the 2000, and that is where the jet mounts, so I don't know if a jet from the 3000 carb would fit in a 2000 carb or, if it does, whether the metering body would properly handle the increased flow. I haven't compared them directly, so maybe they're compatible, but it's possible that they're not.

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10-30-2015 12:40:39

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 Re: Holley 2000-3000 carburetor question in reply to Sean in PA, 10-29-2015 14:20:52  
Good point Sean. I have a 3000 metering body but it's not as nice as the 2000. I think I'll leave it alone. Comparing the two metering bodies side by side (2000-3000) I don't see any differences but I'm sure it's in the porting or something.

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10-29-2015 11:42:55

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 Re: Holley 2000-3000 carburetor question in reply to JASON IN MICHIGAN, 10-28-2015 12:59:46  
I'm sure it'd run fine but I'd swap the jet. The book shows the 3000 as a hp or two higher than the 2000 (I think the 3000 runs a higher redline than the 2000 but it could be carb related).

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Ultradog MN

10-29-2015 04:23:48

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 Re: Holley 2000-3000 carburetor question in reply to JASON IN MICHIGAN, 10-28-2015 12:59:46  
I don't think you would even need to mess with the jets. Just put it on.
The 2/3000s gassers were both the exact same 158 ci.

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