LIMA (AFP) - Peruvians headed to the polls Sunday in a presidential election run-off between a leftist ex-army colonel and the daughter of jailed former strongman Alberto Fujimori. Opinion polls have given former military man Ollanta Humala, 48, a slight lead over Keiko Fujimori, a 36-year-old right-wing lawmaker whose father is serving a lengthy jail sentence for human rights abuses and corruption. "It will be a close race that is likely to have a photo finish," predicted Fernando Tuesta, director of the Institute for the Study of Public Opinion at Lima's Catholic University. The last two opinion polls, from Datum and Ipsos-Apoyo, showed a lead of between 1.6 and 3.8 percentage points for Humala over Fujimori.