FAST's Dual-Sync Distributors are an easy, drop-in, plug-and-play solution for fully sequential high performance V8 EFI engine applications. Featuring reluctors and pick-ups that have been properly aligned right out of the box, they eliminate the need to set crankshaft reference angles or rotor phasing manually before installation. FAST Dual-Sync Distributors also feature housings that are CNC-machined from high-quality 6061-T6 billet aluminum. Using high output magnetic pick-ups to generate high capacity, noise resistant, discrete switch signals to the XFI ECU, they deliver extremely precise ignition timing and extra long life.