This Distributor bolts in place of the factory power steering pump on EcoTec engines. There is a stationary magnetic pick-up under the Rynite cap that supplies a cam sync signal to the aftermarket EFI system. Thanks to a special rotor plate design, the pick-up can be phased to the ECU’s specification while rotor phasing can still be set properly. MSD molds our most popular V8 distributor caps in-house. These caps are injection molded from DuPont® Rynite material and feature spark plug-style terminals. These terminals offer improved locking connections and the Rynite material is extremely strong with excellent dielectric properties. Plus, most caps have an optional wire retainer that is supplied with these caps to lock the wires in place.