RE: 4C carb air intake
??????? It's been 115 here and my planes seem to have enough air flowto get the air in and out of the cowl. I do run my engines, four strokes, YS, a bit fat this time of year. Most folks say to fatten them up by about 300 rpm, mine I run at about 500 fat. As for a true cool box????? I have never seen anyone do it but we all tune for our area.