20’s F. Start with the CGL’s second from the bottom clip. This will all probably be a little fat, but if it will still pull clean leave it be. If it’s a little blubbery, put the needle at middle clip, and back the main down one size at a time. Once the sun goes down on the ice, it’ll want more fuel. There were days where you start riding in the sun and make two jet changes as it gets colder when the day goes on and clouds come in or sun goes down. I’ve played with power jets and the Dial a jet on my old PJ’s and actually liked the dial a jet quite a bit. It lets you keep making the needed changes with out needing to pull the carbs to do mains.