what is the highest cht temps you have had on cyllinder #3,with o.a.t. around 80 degrees, on a m20 j....thanks,for some reason my cht temps are 416 degrees in cruse,is this normal,have had this plane for 15 years,just got edm 920,and noticed this temp,shop says edm is operating,100 percent normal.i always thought 385 degrees was the magic number,,,,,,thanks gary