Flowe started boxing at age 12 for Coach Vince Bradford at Charlotte Central High School. He had five fights and won them all. Flowe then began boxing for the Charlotte YMCA and won the Carolinas Golden Glove middleweight championship and represented the Carolinas in the National Golden Gloves Tournament in New York City. In 1951, Flowe again won the Carolina Golden Gloves championship and advanced to the national tournament in New York. This time, Flowe made it to the finals of the national competition. Flowe, who now makes his home in Georgia, had a career record of 32-3-0.