Originally Posted by nitro crazy

two questions about this engine?? First where is the o-ring located on the idle screw if there is one, slightly melted my carb with a heat gun at the head of the idle screw just a bit. (kicked my own A__ after this). Second question all i have in my pit box are odonnell plugs 97t and 77t, the hobby shop was out today and i'm racing this weekend and i have got to choose between the two odonnell plugs, anyone know which would work the best.. thanks in advance....