Smoke show  

I heard Kevin Harvicks comments on what they have found in his blood work. He stated they found biproducts from fuel and oil ( my guess hydocarbins) and it sounds like they are trea him for it. That made me wonder what the drivers are breathing in when they do their burnouts after they take the checkered flag. Sitting in a small space and breathing hard it probably ain't good. I guess we will find out somewhere down the line.