Drag Racing Engines - Turbo and Supercharged - Pro Line Racing, Championship Winning, Record Setting, Turbocharged Drag Racing Engines. Pro Line Racing Offers Drag Racing Engines, Turbo and Supercharged EFI Packages, High Performance Parts, and Racing Apparel. From Small Tire Racing to Pro Modified Our Engines Have Won Multiple NHRA, PDRA, and NMCA Championships.