You have to try hard or theorize in blunder to have overheating issues.
The combination, that's what promotes detonation in any build.
You can make anything cack cack if you running inappropriate gear wrong timing and or curve ... too high dynamic..and definitely a poor cooling system will do it.
In my experience, 'with 91 octane and open chamber' about 165 psi is the max near 'sea level' without quench...160psi and less is as safe as can be....On the other end of the spectrum 'with tight quench' ..about 185-190 psi... but its ragged edge. That's based on my own experience and not the end all... but it will keep you out of trouble hopefully.
