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Old 11-26-2020, 03:12 PM   #3
truckster
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Join Date: Jan 2001
Location: Orem, Utah
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Re: Performance Lacking in a 383 Build.

It's not the carburetor, unless it was put back together wrong. A Quadrajet should be plenty of carburetor for that engine. Do you know what pistons were put in it? Which RPM heads? What's the compression ratio? The cam looks good, and the extra 33 cubic inches should be noticeable, but it's also possible it's a question of tuning.
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