What Mitch said- figure out what changed and fix it. Yeah, Kadrons need low fuel pressure to survive, but I'm surprised at that little rant, Stan. There are (tens of?) thousands of Kadron dual carburetor sets out there with the majority running hundreds of thousands of miles, getting good mileage and being generally pretty trouble free. I know they're not as sophisticated as Webers or Dellortos, and along with the low fuel pressure requirement mentioned above, other than needing the throttles shafts bushed once they have some miles on them they're a decent little carburetor set for the money. They are a great way to learn about dual carburetors on a milder engine and definitely have a place in the hobby.