Garage smells like raw gas had to park car outside, it is a 68 chevelle ss and builder put a big electric fuel pump in the back on frame rail and used 1 of the vent holes for a return fuel line and there is another one there and it is plugged off.,but don't car need to vent and is there anything I can do about the raw gas smells , and were are they coming from . I'm don't no what to do .smells all house up like gas wife not happy