Section 4. Election of Delegates.--Elections for delegates to the limited constitutional convention, if approved by the electorate, shall be held at the municipal election in the year 1967. The Secretary of the Commonwealth shall forward to the County Board of Elections of each county the names of the candidates for delegate to the constitutional convention. Each elector voting at the municipal election shall be entitled to vote for two candidates for delegate from his district. The three candidates receiving the highest number of votes in each district shall be the elected delegates of that district. The County Board of Elections shall on or before November 17 make to the Secretary of the Commonwealth the proper certification of returns of votes cast for the candidates for election for the office of delegate to the constitutional convention. The Secretary of the Commonwealth shall not later than November 24 certify to the Governor the names of the delegates elected to the convention. In the case of a tie vote the election shall be determined in accordance with the provisions of section 1418 of the Pennsylvania Election Code.