Uh oh someone's trying to be crafty. So, technically, by the definitions in the rule book, a belly pan is only a belly pan when it covers at least 51% of the undercarriage of a vehicle. In GC, streamlining, including belly pans, is not permitted BUT jjolly is trying to be Smokey Yunick here and say that his belly pan isn't a belly pan since it only covers 49% of the undercarriage of his vehicle. We've encountered a fun grey area here but I will say that the spirit of the GC rules are that there isn't supposed to be ANY paneling under the car that covers ANY percentage of the undercarriage. GC are essentially production cars with engine swaps and quick change rear ends with NO STREAMLINING. You could roll the dice and try to get away with this as a technicality but I'm pretty sure Dynoroom is the door slammer committee head so like he's already said, your 49% belly pan is a no go in GC.