Quote:
I have a demon carb I got in a trade a while back and have no use for it but I can't sell it unless I know what it is but there are no number that I see anywhere except 169 on all four throttle plates and it has a vacume secondary pod and electric choke with a single inlet and a crossover tube to fill the other bowl. The secondary venturies look like they are gonna flow less than the primaries  never seen that before 
How do I tell what the heck this is?
As several have stated already the only single line carburetors we do are the Road Demon Jr's. If it has a red cap somebody has changed the top so they could change the springs out for tuning. 1.69 on all the butterlfies means it is a 725 Road Demon Jr. You should be able to look on top of the main body beside the secondary vent tube and it will have a 7 there and a small dimple.
| 
