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Old 02-27-2004, 10:36 PM   #1
Daves72'GMC
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Question quadrajet?

I have the origional quadrajet carb. on my '72 GMC with the 402BB and was wondering what CFM they are? Thank you. Dave
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Old 02-27-2004, 11:27 PM   #2
Don Smith
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If it has a 1 and 3/32 in. venturi it is 750 cfm if 1 and 7/32 it is 800 cfm.
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Old 02-28-2004, 12:04 AM   #3
Hooter
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whos to say if it is the original carb that is supposed to be on the motor, best way to find out is to get the numbers off the carb
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