The son of two pilots, he would wash airplanes at a local airport in exchange for flight time while growing up in Kentucky.
In 1971, he partnered with Charlie Hillard and Tom Poberezny to form the Red Devils Aerobatic Team, flying the Pitts Special.
He had a Grumman Ag Cat cropduster modified for a Wing walking act, and named the aircraft the Showcat.
His partner and girlfriend Teresa Stokes performs as the wing walker while Soucy takes the Showcat through various aerobatic maneuvers.
His credits include Aces: Iron Eagle III, where he flew with Charlie Hillard, and The Pancho Barnes Story.