quadrajet id

[chevyshaker]

I have a quad carb #7045264 AS I am trying to find out the cfm's for theis carb. How do you tell the difference in the carbs cfm's?

[chevyshaker]

I have a quad carb #7045264 AS I am trying to find out the cfm's for theis carb. How do you tell the difference in the carbs cfm's?

[Kenth]

All 1975-up Pontiac Q-jets, and most of the others too, have the 800cfm casting, although the secondary airvalves may need to be adjusted for full capacity.
Look down in the primarys and you´ll see a bulge on the venturi wall that the 750´s missing.

[chevyshaker]

Thanks Keith for the info'