can somebody identify this demon carb?

[Blue68Camaro]

Supposed to be a 750, but what series?
Thanks
http://www.camaro-online.com/images/carb.jpg
http://www.camaro-online.com/images/carb2.jpg
http://www.camaro-online.com/images/carb3.jpg
http://www.camaro-online.com/images/carb4.jpg

[TECH1@BG.COM]

Carburetor is an earlier Speed Demon . I cant make out the number on the top by the secondary vent tube in the pic but it will have a 6,7 or 8. 6 is for 650, 7 is for 750 and 8 is for 850. Hope this helps.