Edelbrock's Pro-Flo®2 EFI software offers easy-to-use, yet sophisticated tuning control with user-friendly pull down menus and screens. Additional software features include choice of Edelbrock exclusive handheld Calibration Module (for tuning without a laptop) and new for Pro-Flo Gen-2 is the option to laptop tune also, giving you the best of both worlds! Two tuning strategies include speed density (engine speed vs. manifold absolute pressure) and alpha-N (engine speed vs. throttle position). Included are base calibrations for common AMC, Chevy, Chrysler and Ford applications.