He successfully qualified for the 1930 Indianapolis 500 driving a Miller and started and finished 9th. Allen later worked as a mechanic, secret policeman and bank teller in Chicago.
Allen's racing experience led to his qualification for the 1930 Indianapolis 500, where he drove a Miller car and finished 9th. He then transitioned into other careers, including working as a mechanic, undercover investigator, and bank teller in Chicago.