ORIGINAL: boomerik
like said a few times above a webra with dynamix is a very nice engine and very good quality (have one on my curare and a putting a .40 on my minare). Or a MVVS .60 you can choose yourself to make it SE or RE and it's not very expenssive and a solid engine have one on my deception and has unlimited vertical MUCH better than the OS 61 fx i had on it before was maybe one of the worst engines i ever had.
No one currently carries MVVS in the US, Hobby Club in San Clemente, CA has some old stock but just has some 21's and 40's left. Exchange makes them more expensive than the OS.
Chris...