RE: 3W 157 and Composite 260
jets
is it your left cylinder heating? Have you used amsoil? It cooled my super 80 about 20 degrees. If it is your left cylinder, your baffling needs to be closer. You also may be getting pressurizaiton in the cowl. Open the bottom more and put a spoiler just in front of the lower opening to create turbulence under the nose, and it wil in turn create a low pressure area and suck out the heat. One side is probably allowing the hot air to get trapped. It is so important on big motors as you probably know. Try the spoiler first. If you talk to Mike Dooley, he will tell you the exact thing I would venture to say. He told me the same thing on my setup.
goose