the best choice to you is the torch 60

at same weight of 3w55 , but stronger than all engines commented above


www.torchengines.com.br

see the short video youtube.com/watch?v=0om2djrondg

i´m flying it with aerotech velox 28% and the result is outstanding

there are johnson mufflers and jtech made for the torch engines

good luck

marcio