One of the guys I fly with uses a 11X6 on his 46LA. It's been a good one for him.
About that "running rich".... actually, in the air, the prop unloads a little, allowing a bit more RPM. At which point, if you peaked it on the ground, you're lean in the air. Glad it's working for you.
Good luck,
Dave Olson
ORIGINAL: ironj21
yea that was the problem....i richened it and flew without any problems. it actually didnt lose any power either which is good. what prop would be the best match for this engine ? i am using a 10x6 wood prop right now and it seems to be working ok.