I resemble that remark!
You don't know much about the motor so investigate.
Check Post 4 1st. Set at 34 then see what your initial is. Might need some recurving.
Check your compression. I over cammed a low compression motor that sounded awesome and wouldn't get out of its own way back in the day.
As said what fan set up. Do you have a shroud? Timing can affect temps.
I'm sure other will give you some more ideas.
Check thing out and report back.