The new FAST XDi Race EFI Distributors allow the proper triggering of all EFI systems without compromising rotor phasing, for the most stable ignition timing throughout the entire RPM range. The distributor uses an advanced optical trigger to deliver more precise trigger signals (± ½-degree accuracy) than magnetic pickups used by competitors, particularly at high RPM. The FAST XDi Race EFI Distributor is constructed with a CNC-machined billet housing, a precision-ground stainless shaft and premium bearings, all hand-assembled to exacting standards. This maintains a consistent end play that eliminates another common source of timing fluctuation. Available for multiple applications with either a small or large cap, each distributor comes with a high-quality rotor and precision-machined bronze gear.