This distributor features output ignition module that is built into the billet aluminum housing. This distributor drops in the engine and connects with only three wires. There is also a vacuum advance canister to increase cruising economy. This distributor is built around a CNC machine billet aluminum housing and feature a maintenance-free magnetic pickup so there are no points to worry about. A precision reluctor is mounted to a QPQ coated steel shaft which is guided by a sealed ball bearing for accurate timing signals throughout the entire rpm range. The distributors also are fit with an easy-to-adjust mechanical advance assembly. Chrome moly weights move smoothly on nylon pads and different advance springs and stop bushings are supplied so you can custom tailor a timing curve to match your engine's requirements.