RE: Best 100 - 120cc engine for 3D
All are excellent choices.
I have the MVVS 116 (Evo) and the BME 116 fitted in identical Yaks here. I find the MVVS to have a (very) slight edge over the BME for a 3d power curve. the MVVS is fitted with the MVVS 3204 Canisters and the BME is fitted with MTW TD 110's.