I have what looks like an aluminum Street Avenger. Numbers on the choke tower are:

Can anyone can verify the CFM?
I really couldn't find it in the parts list I downloaded.
Tech support is an over an hour wait, told me to call back and hung up on me, LOL.
Google had an eBay add that called it a 670 cfm.
The guy I got it from said it was a 750 cfm.
I don't know. Help?