Ford Modular Controller For 4.6L/5.4L Allows You To Run A Carb On Your Late Model 4.6/5.4 Ford As Well As Add Timing Controls MSD IgnitionNew technology to go old school! When you retro fit a Ford 4. 6L or 5. 4L (SOHC DOHC) with a carbureted 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