By WILLIAM J. KOLE, Associated Press Writer VATICAN CITY – Black smoke emerged from the Sistine Chapel chimney again Tuesday as the scarlet-robed cardinals inside failed in two more ballots to elect a new pope to build on John Paul II’s legacy and heal deep rifts within the Roman Catholic Church. Several thousand pilgrims and tourists who packed St. Peter’s Square to stare at the slender stovepipe jutting from the chapel’s brown tiled rooftop gasped when the smoke appeared just before noon. The 115 voting cardinals sequestered in the chapel were to break for lunch and reconvene in the afternoon for the day’s final session of secret balloting. White smoke