Wildcard Cylinder / Head

I don't understand this either. I'm running about 180-185 comp in my mx motor. It was built by a guy thats been building 2 stroke motors for 37 yrs.
 
I'll give you that, a MX motor, on and off the gas, you try and run a blaster or any air cooled motor with that much compression wide open its not gonna be very happy, I guess I like to drag race/road race and holding an aircooler open on a straight that long would usually get you a nice seize