Pro Modified is the most popular class of cars in drag racing today. From fat-fendered 40 Willys with superchargers sticking through the hood to radical Lamborghinis and 'Vettes and guardrail skirting ...

Roots-type blowers — which are different from centrifugal or twin-screw superchargers — frequently dominate the front ends of modified muscle cars and street rods, especially dragsters and similar ...

They come in a variety of shapes and styles. Some appear stock and others look like a Salvador Dali styling exercise, but they all have two things in common: They have doors, and they are godawful ...