What a plane indeed!!!

I think I am pretty close to 100-105mm back myself. The plane flew awesome. Very responsive, and the landings weren't near as fast as I anticipated. I did open up the front and bottom of the cowl to allow more airflow today. I wasn't thinking when I put the bigger than recommended engine in there and didn't give it more breathing room. I tried to cut the front of my cowl to match yours, and was going to do the same with the bottom as far as adding more holes on the bottom, but i'm afraid I cut the front of the cowl too large and kinda stopped there. What are my options? Since I cut the front bigger, do I need to need to get the bottom 3X as big as that, or does the front count as some of my exit also? Im so confused. I am being told that I shouldn't have cut the front at all because it will cause the engine to over-heat?? I don't see how if the air has a place to escape, but I dont know. This is my first plane that I have built from ground up (all the others were given to me or sold to me built), and these are problems I haven't had to deal with. I really need some step by step advise on what I should do. I dont want to blow my engine up. It cost almost twice what the plane did.

I'm glad you got to get out and fly again. I think my cg is right where it needs to be at 100+/- mm, and it sounds like your plane flies a little better there also.