RE: G-26 ZENOAH, FLAMES OUT
OK, my two cents.
First the static port. It is connected to the carb regulating diaphragm chamber. The line can be long, and must terminate on the outside of the fuselage in a smooth fashion. Not prone, nor sunken. The fuselage section must be straight, not curved lengthwise. That way the carb get exactly outside air pressure for reference.
About the cooling.
There is not much of an air exit. The one real effective exit, the trailing end of the cowling standing slightly prone from the fuselage, is blocked by that nice seal you put in there. Make a couple of standoffs to define the air exit slit of about 1/4", and remove the seal.
Then place a baffle in front of the engine do direct all airflow over the cooling fins.
Lastly:
Your ignition HT wire rubs on the muffler. It will wear, but most of all get too hot locally, causing deterioration of the HT insulation. That is an ignition failure waiting to happen.