On this episode of Put Up or Shut Up, host Brian Lohnes has chosen a pair of closely matched but mechanically different dirt track classes to battle it out. On one side are the Dirt Modifieds, 2,400-pound, screaming small-block monsters. These cars slide around the corners and power down the straights. On the other side are the more local and bucks-down Super Stocks. Weighing 3,000 pounds but making far more horsepower, they are going to have to throw their weight around to bump the Modifieds off at Perris Auto Speedway!