New technology to go old school! When you retro-fit a Ford 4.6L or 5.4L (SOHC/DOHC) with a carburetor intake manifold, you'll need this new controller to handle the ignition chores. The controller plugs into the coil packs and sensors of the engine for a direct installation. From a PC, using our pro-data software, you can program a custom timing curve, a step retard, two step rev limiter and even a vacuum advance. A great system for street rods and retro muscle cars. Product Features:Fire coils/control timing on Ford Modular engines w/carburetorsMap timing curve and vacuum advance to meet your vehicles needsProgram two rev limits and set a step retard for nitrous useEasily connects directly to coils/crank/cam/MAP sensorsDoes NOT control fuel