Thread: QuadraJet - Which secondary metering rod to use?
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  #10  
Old 06-02-2022, 10:27 AM
GTO-relic GTO-relic is offline
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the early Pontiac SD455 and Buick 455 1970-74 carbs were always listed as 800cfm rating, not 850cfm. Are you saying the later 1975-up carbs flow 850cfm ?
Where's the extra 50cfm come from ?

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