FiTech Fuel Injection introduces the Retro LS! Have you been hesitant on switching to EFI because you like the traditional look of a carburetor? Do you have a GM 4L60/80E Transmission in your hotrod? There is no more need to worry! FiTech’s Retro LS EFI 650hp fuel injection systems offer a “golden” opportunity for impressive looks and performance. These classic gold engine-toppers with transmission control are complete throttle body kits, suitable for everything from your junkyard 5.3 to a Stroker 427—and they deliver old-school carburetor looks with EFI technology and reliability. Whether a do-it-yourself hot rodder or professional EFI tuner, the features of the FiTech Retro LS EFI 650hp system are sure to inspire you. Now you can have all of the benefits of EFI yet, maintain the traditional looks of a carburetor. This system is ready to go with the needed wiring harness and sensors to get you on the road easily and faster than any system on the market today. Our system is easy to install, no computer experience required, a tight fit regulator and a hand-held tuner is included.