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Old 08-30-2012, 09:45 PM
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Holley Carb Question?

I bought a 350 chevy truck that came with an after market Holley Carb, at least that is what he told me. It looks new, and preforms flawlessly, it has a 6.5 power valve in it, and #64 jets. It looks like a double pumper but it is not. as it only has one pump up front.
i've looked the number up to see just what i have and can not find anything. I dont know what CFM it is!! don't really know anything else other than what i just said.
The number stamped on it is 80457-7
Anyone have a clue?
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Old 08-30-2012, 09:53 PM
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Ran a search on google for ya, looks like it's a 600 cfm carb. Hope this helps you out.
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Old 08-30-2012, 09:57 PM
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Holley has the numerical listings on their site. See attached PDF.

I don't see a "-7" specifically, but all of the other "80457" carbs listed are 600 CFM 4160 series



80457S
Attached Files
File Type: pdf Carb%20Numerical%20Listing.pdf (62.6 KB, 16 views)
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Old 08-30-2012, 10:18 PM
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OK, Thanks guys... Really surprised it's a 600CFM... it really performs great!
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