I'm curious as to why you think Demons are a pain to deal with? They are almost the same carb as a Holley or a Quick Fuel. 4 corner idle, power valve, double pumper, seems the same at least. Never had a pain dealing with mine.
My 340 never idled good and just didn't feel right with the Holley 750 DP mechanical secondaries then I put on a speed Demon 750 DP mechanical secondaries without choke, and the car never ran so good. The Demon ran great right out of the box.
