Florian grew up in Cleveland and began his motorsport career on local short tracks, competing in quarter midgets and sprint cars. His talent at close-quarters oval racing was immediately apparent: at one local venue he won 71 of 75 feature races, a remarkable consistency that signalled a driver with natural speed and mechanical intuition. In addition to his role as a driver, Florian worked as his own mechanic, giving him a complete understanding of the cars he raced.
Florian entered the NASCAR Grand National Series in 1950, driving a 1950 Ford that had an unusual pedigree — it had formerly belonged to the Detroit chief of police. His friend and truck driver Bill Whitley co-owned the car and occasionally drove it himself, competing in a handful of races across different machinery including a Hudson Hornet and an Oldsmobile.
Florian made his series debut at Langhorne Speedway, finishing third — a strong opening result. Two races later he qualified on pole at Canfield Speedway, though he could only manage a sixth-place finish there.
The defining moment of Florian's career came at Dayton Speedway. Curtis Turner had dominated the race, leading 115 of 200 laps in a commanding display, but Florian hunted him down and passed him with 35 laps remaining to take the victory. The win was historically significant: it was the first NASCAR Grand National race won by a Ford Motor Company vehicle. The result stunned the paddock, largely because Florian's car used a flathead engine while the dominant machinery of the era ran overhead-valve engines — notably the powerful Oldsmobiles that had been the series benchmarks.
Rival drivers were unconvinced. Curtis Turner, Joe Weatherly, and Lee Petty all filed protests against the result. NASCAR investigated thoroughly, even contacting Ford Motor Company directly to verify that Florian's engine was not oversized or otherwise modified beyond the rules. The company confirmed the car was legal, and the victory stood.
Upon arriving in Victory Lane, Florian stepped out of his car without a shirt. His co-owner Bill Whitley later explained the reasoning: the heat on that particular day was intense, the car's seat was deeply uncomfortable, there was no seatbelt fitted (not required by NASCAR at the time), and the limited crash protection of a stock car of the era had made the race a physically taxing experience. Florian had apparently removed his shirt at some point during or just after the race.
The image stuck. He was forever after known as "Shirtless" Florian, and the incident had a concrete regulatory consequence — NASCAR subsequently introduced a rule explicitly prohibiting drivers from removing their shirts in Victory Lane.
Florian continued in the NASCAR Grand National Series in 1951, 1952, and 1954, recording seven further top-ten finishes and two top-fives, though he never again reached Victory Lane in the national series. He ended the 1950 championship season ninth overall in points.
After his NASCAR years, Florian returned to short track racing closer to home and continued competing in vintage cars until the age of 72, demonstrating an enduring love of racing that outlasted his time at the sport's highest level.
He died in February 1999 at the age of 75 following a battle with cancer.
Florian's single NASCAR win carries an outsized place in the history of the sport. The Ford victory he delivered in 1950 helped establish that manufacturer's viability in NASCAR at a time when Oldsmobile appeared unbeatable, and the controversy and subsequent protests that followed the win underlined just how unexpected the result truly was.