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Old 10-19-2022, 10:16 PM   #4
AcampoDave
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Join Date: Feb 2013
Location: central California
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Re: 66 c10 engine upgrades

I copied this from some old Motortrend article. Maybe it will help you

To arrive at the most appropriate carburetor choice, there's a basic formula: engine displacement multiplied by maximum rpm divided by 3,456. For example: a typical 355ci small-block—a 0.030-over rebuild—with a 6,000-rpm max engine speed would work well with a 616-cfm carb ((355 x 6,000) 3,456 = 616.32).Jan 29, 2016
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