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Old 01-01-2019, 03:03 PM   #8
Oddfire
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Join Date: Jan 2013
Location: Front Royal, Va
Posts: 689
Re: 1970 Quadrajet 7040509 600cfm

No...the airflow of that carb is 750cfm the factory controlled the metering for various engines by drilling the idle air bleeds, down restrictors and also the main jet/ metering rod combos. No matter what you've heard...there's no such thing as a 600 or 650 qjet. jamie
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