was wonder whats the cfm on them ..are they all the same like s.b.c.and b.b.c..? what about a 500 caddy one ?? i got one of those too....

http://buickperformance.com/qjet.html

Some Caddy and Olds qjets are 800cfm. The qjet is a variable cfm carb cause of the vacuum operation of the secs, they only supply what the engine calls for, hope this helps.