I finally got to test fly the 109 with the NGH 35. It was cold 40 degrees F, overcast, with 5-10 mph east wind, more or less down the runway. It started up ok, tacked at 7,400 rpm with the 17-8 three blade Zoar prop. Usual warbird take off, slowly advance throttle, up elevators, keeping straight with rudder, eased off the elevators, tail came up, took off at about 3/4 throttle. Had to use almost full right rudder. The plane was a little out of trim. Trying to climb, needed several clicks of down and some left aileron trim. The engine seemed to richen up in the air. That is better than leaning out and quitting. So was not getting full power. I'll lean out slightly before the next flight. Able to do large loops and good vertical but not really over powered. Fingers getting cold so I decided I had better land while I still had feeling in my fingers. With gear and flaps down it tried to climb and roll to the right, so I retrimed. I'll need to add some mixes. Landed on the mains with a small bounce, no problem.The extra weight is barely noticeable on landing. I'm glad I went with the 35 instead of a 26. Once I get her leaned out and broke in, it should have plenty of power. No indication of overheating, but weather was cold and flew most of flight at about half throttle, with only short burst of full throttle, also rich. I think my engine swap is a success.