i was looking into putting a techno circuit 19 del carb and maybe the 65cc polini kit. i heard they seize up a lot and people say go with the 70cc K-star or TCCD/RGD. what is a TCCD/RGD kit? and where do you find k stars i looked around for them but couldnt find them. so what im saying is the polini kit good or should i just get a different kind? if so what kind do you guys recommend?