[jimf]

From what I read in this thread, it seems that a lot of the heat transfer is via hot air coming back up from the cylinder heads through the intake ports, through the manifold, coming to a stop at the throttle plates in the carbs......I wonder what the effect would be if, after the engine was shut off, one was to hold the throttle plates open and allow the air to pass through the carbs untill the engine cooled. Maybe the venting of some of the hot air would be enough to stop the heat transfer to the carbs and boiling the fuel. This should be relatively simple to do if it would change the situation. Has anyone tried this???