no idle once foot is off. only 2000 rpms keep it running and allow it to go into gear without stalling. ive raised the idle to 1500 rpms (foot off pedal) but that wont keep the engine running when it goes into gear. it onls make for a fast running engine all the time. is there something I don't know about this thing that when it goes into gear it will have the carb increase rpms to stay running? say like the job of an idle air control valve? thing is even I such component exits why 2000 plus rpms to keep engine running? you think timing can be that far out that 2000 can only keep the engine running? or a fuel issue that keeps the engine running under load but 2000 worth of throttle. adding fuel, to keep it running? what do you think?