BRASILIA, Dec. 17 -- The presidential candidate of Brazil's main opposition party Tuesday unveiled his campaign platform for the 2014 elections, calling for change and reconciliation.

"I am ready," Senator Aecio Neves of the Brazilian Social Democratic Party (PSDB) told the Chamber of Deputies, after his purported opposition rival, former Sao Paulo governor Jose Serra, said he won't dispute Neves' candidacy.

Neves praised Serra's decision and added the PSDB would announce its candidate only after "consulting with each state." He also said he was confident that his party would be able to take enough votes.

"We will present a clear project of change, of efficiency in public management, an ethical and bold project, and therefore, we are going to take a second round and win the elections," said Neves.

Neves said that during his campaign, he would defend Brazil's reconciliation with its past, especially the rule by fellow party member Fernando Henrique Cardoso (1995-2002).

"I propose a definitive change, including the reconciliation of Brazilians with their own history. We cannot support that some attempt to rewrite history and say that Brazil began in 2003," said Neves, referring to the year when the ruling Workers' Party (PT) came to power.

He promised to strengthen legislative power and give some autonomy to local governments. He also warned that the country's economic stability was under threat due to governmental errors.

According to recent polls, Neves trails President Dilma Rousseff by a significant margin, with only 15 percent voter support compared to the incumbent's more than 40 percent.