What is the operating temperature range on the cylinder head? My MVVS 26 gasser gets considerably hotter than glow and other gassers (BME 50, converted OPS 30, Zenoah 23) I have.

Even when run without a cowl, the head on the MVVS vaporizes spit on my finger in a fraction of a second. I mix 5 oz of Mobil 1 Racing 2T to a gallon of premium gas. That's a little more oil than the 30:1 in the instruction (4 oz makes 32:1). Thank you for an answer.