Peltz would leave the Blue in 1971 after 31 cards to promote at bigger venues like the Arena and the Spectrum, but would return in 1974. Peltz would promote more fights at the Blue Horizon than anyone else in its history. The Peltz era brought Philadelphia greats such as Matthew Saad Muhammad, Bernard Hopkins, Cyclone Hart, Tim Witherspoon, Willie Monroe, Boogaloo Watts, Sammy Goss, Jeff Chandler and Bennie Briscoe.
In 1971, Peltz left the Blue after 31 events to move to bigger halls like the Arena and Spectrum, but returned in 1974. During his tenure, Peltz promoted more fights at the Blue Horizon than any other person in its history. The Peltz era saw the rise of Philadelphia boxing greats including Matthew Saad Muhammad, Bernard Hopkins, Cyclone Hart, Tim Witherspoon, Willie Monroe, Boogaloo Watts, Sammy Goss, Jeff Chandler and Bennie Briscoe.