A federal judge ruled yesterday that a website has the right to publish information from confidential Ford documents about the automaker’s efforts to build vehicles that emit far less pollution and have significantly better fuel efficiency than current models. The case is awkward for Ford because the company is now lobbying against tighter emissions and fuel-economy regulations, arguing that they would be too tough to meet. A Ford spokesperson said the technologies described in the confidential documents may not be feasible for technological or marketing reasons.