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 ...

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 ...