Seagull makes a decent Extra and Edge. Take your pick. Low budget, flies pretty darn good for a .60 size.

Use a 120 4-stroke or a .90 2-stroke on it. Thats if you want REALLY good power. But, you can't fly it full throttle like that. They aren't race planes. Thats for vertical maneuvers. You'll be flying about 1/4 or 1/3 throttle for everything on the horizontal.

If you just want decent power--try a .75 2-stroke or a .91 4-stroke.