Super Production is a catch all class to make sure that a) pretty much anything already classified in another closed wheel group has a second run group available to maximize track time on a race week-end and b) anything that is found to have been built that simply doesn't fit any set of accepted class rules will always have an opportunity to race in classes where the only divider is displacement.
In all cases, nothing is allowed to run in Conference that doesn't meet safety standards intended to protect drivers, volunteers, and spectators. First requirement for racecar prep in Conference is safety - everything beyond that is just about competitiveness.