have dual intake and k&n filter rev pipe and silencer, I understand the different circuits for the carb and am familiar with tm carbs as that is mainly what is used on our sleds, problem is this carb doesn't have a air or fule screw for metering idle circuit just pilot jet. It starts perfect with no choke so that tells me its rich idles a little rough but not terribly bad wont run at all just starts cutting out after you give some gas it is basically fouling the plug sitting at idle and loads up egts barely pull 800 change plugs while its hot and it runs better till it fouls that one, my power jet is completely closed.