Massachusetts pundits and periodicals like to pour great debates from parochial pitchers. The big question of 1992 was whether Democratic ex-Senator Paul Tsongas could merchandise his hairshirt economics west of New England (no, as it turned out). Looking ahead to 1996, the wonderment is whether a cultural moderate liberal and fiscal conservative like GOP Governor William Weld can sell his own Eastern elite ideology to a nominating convention dominated by Indianapolis and Oklahoma City. Probably not.