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Old 11-12-2017, 01:15 AM
450hp 450hp is offline
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Talking holley carb
Hi guys does anyone know what size power valve is in the 780 on a LS6 , on the primary ? Has a 8.5 now and a 10.5 in the secondary. Thanks.
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Old 11-12-2017, 10:51 AM
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ZLP955 ZLP955 is offline
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Not sure what the list number is for that carb, but this may help:
http://documents.holley.com/techlibr...al_listing.pdf
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Old 11-12-2017, 11:36 AM
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8.5 front & rear.
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Old 11-12-2017, 05:13 PM
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While we are on the topic...

Has anyone ever documented the correct IAB, MAB, ICR, etc on a factory LS6 carb? Just curious if this info is available anywhere.
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