I'm one of the guys that has a problem with a low CHT. I know many of you have high CHTs and high oil temps put I have the opposite issue. I have a standard Vans cowl with an Superior I0-360,, on days that the temp is say 75 degrees my CHT is usually from 250 to under 300. On cold days my run up temps are higher then my in flight temps. I have checked all my probs and they read correct. My issue is that because the cylinders run so cool I get cokeing of the valve guides. What is the best way of dealing with this?