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Old 04-28-2020, 12:07 AM   #5
HO455
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Join Date: Feb 2016
Location: Portland Oregon
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Re: Carb size 454bbc

For the most part GM put 750's on the early 454's and then in the mid 70's they went to 800 cfm. They were all Qjets. If you like the AVS carbs go with one of them. I wouldn't think twice on putting an 800 on a 454.
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