hi i was just wondering on how to derestrict my skyteam st-50 o8 its was painfuly slow! i started off by hacksawing off the end section of the muffler (at the weld)and it seemed to give it some more power then i bored out the pipe that links the carb to the manifold its now got more of a powerband than when i first got it as it was just a continuous rev.so i was just wondering if there is anything else i can do to it to get the most performance out of it with little money involved. thanks . mike :)