70 q-jet

I have a 70 carb and intake off of a 70 225,the numbers on the carb are 7040240,is this a 800cfm or 750? thanks

 

See my previous post on identifying these carbs. It will help regardless of the carb number. Ray

 

Check this thread out: There is a picture posted by BuickStreet (Bill) that gives you an example of what to look for on an 800cfm qjet.

http://www.v8buick.com/showthread.php?s=&threadid=15044&highlight=800+bump