Im getting a Jackal for my main Christmas gift.. I'll need to cover the engine,retracts etc.

Engine wise.. I have had no luck with the Evolution engines... my Alpha 40 TPS engine ran great for he first day and was nothing but a nightmare after that.. dead sticks, surging when running to full power, power lags, bubbles in the lines... basically the same problems everyone else seems to have.. needless to say I am dropping an OS 46 on the Alpha over Christmas...

So Jackal wise... what would be a good non Evolution motor to install... it seems they push it with the 60NX and the tuned muffler .. I was thinking an OS55 with a Jett Stream muffler, or even an OS61 with a Jett muffler, or getting a Jett 56 / muffler for it..

Anyone have any suggestions/comments?

Thanks, and Merry Christmas!