Which Carb Type?
Those Edeljunks are just that. They cant read the vacum correctly and will stumble off idle if you have any cam at all. Plus alot of them leak gas into the engine while sitting a week or so. Not good!
Been there and it's a big crowd. I run a Speed Demon 750 and love it. It is all good. Crusing, racing, start up, idle. No bad to it.
Demon carbs hold their value pretty good too.