Holley White Holley Flathead Retro T-Shirt Medium 10012-MD | The new Holley retro engine t-shirt features the popular little Flathead engine from the original Holley retro t-shirt – only this time it is full size on the back! Everyone admires the Ford Flathead as one of the early engines of hot rodding. And, who does not love the look of a nostalgic tri power carb setup like the Holley 94s found on this t-shirt! Combine that with the early Holley pennant logo and everyone will know you are serious about hot rodding!