I am in south Georgia not really cold here

Well i didn't break it in. I did my TT pro 46 the same way and it ran fine on the same plane until the engine failed. The TH 46 ran perfect on this plane using 10% omega. When it dead sticked it surged like its doing now and died. i have a macs tuned pipe on it and a 9x8 mas prop. She really screams when she runs wide open. i peak the needle and drop the rpms a bit on the rich side with a nice smoke trail. Thats how i had it set and it was happy. I tuned on it again and still nothing.

One thing it does is idle very very well. When it idling i can advance the throttle wide open and it Will rev up to full rpm and the it slows down making the loud baaa noise from the carb. i also noticed today that it was actually spitting fuel out of the carb when it was loosing its power. if i drop the throttle back to near idle it and then advance it right away it will instantly sag, but if i want a few mins and let it idle and then nail the throttle it will run wide open for a few seconds and sag while spitting fuel from the carb. I changed the glow plug also and it does the same thing. When adaving the throttle slowly the sagging seems to start about 1/2 throttle. if i stop advancing the throttle and back off a tad to keep it running i can sometimes get to full rpm but its on the very rich side. While holding full throttle i can peak the needle and it will seem fine, but once i bring the engine back to idle and advance throttle it starts the sagging crap again. I pulled the lines of the engine and blew into the pressure line and fuel flows freely. i also blew through the needle valve into the carb and it wasn't stopped up. What it seems like its doing is getting flooded with fuel during the midrange rpm. Thats when it starts spitting a mist of fuel out of the carb.

I have always been able to get a engine running good but this one is different. i have never seen a engine do this before. I tried putting my TT 46 carb on the TH engine but its slightly large in diameter so it doesn't fit.

its really amazing how it ran so good and now its just a dog. compression is real good also.