You'll get some attention when you pop the hood and show an HP Stealth Ram™ Multi-Port EFI system! Available for traditional or Vortec headed SB Chevys. Simply utilize a laptop (or the optional 5.7" full color touch screen LCD) along with the HP's self-tuning capabilities to make it as easy as 1, 2, 3 to get your car up and running with EFI. The tunnel ram design of the Stealth Ram™ builds power in the upper RPM while maintaining excellent mid-range torque as well. HP Stealth Ram™ systems include: intake manifold, billet throttle body, ECU, wiring harness, fuel rails and related small parts. Fuel pump and injectors should be selected separately to fit your requirements.