I fitted the wings all is good ,but When I went to put on the fuel line from the tank to the valve I discovered I may have to drill a clearance hole for AN fitting nut, the fuel tanks go on and off easily. But if the nut is on the fuse I can't get the tank fuel fitting by the nut. Actually I can on one side and could force the other side but both would be a paint scratching experience, I have a straight AN bulkhead fitting on the sender plate. I do not want to drill a 3/4 plus size hole but if this is normal I will, . Is this normal?