The all new Digital E-Curve Distributor will drop right in your engine and fire up with three simple connections! Not only are there no external controls or boxes to mount and connect, but you can set a timing curve with the twist of a rotary dial! That’s right, no more springs or stop bushings to fumble with. A new digital module lets you choose from 20 different ''centrifugal'' curves and five vacuum curves - that’s 100 combinations! Simply remove the cap to get to the rotary dials and choose a curve to match your application. You can also set an rpm limit that will protect your engine from overrev damage caused by a missed shift or driveline failure. This limit is adjustable from 5,000-10,000 rpm. These adjustments are possible due to an advanced digitally controlled ignition module. Not only does this module offer these adjustable options, it also produces a hearty jolt of energy to the coil to produce a powerful spark that will fire up your engine’s performance. Also, a magnetic pickup is used for reliable and accurate trigger signals throughout the entire rpm range of your engine. The E-Curve Distributor is topped with MSD’s Rynite molded cap and rotor and is supplied with a heavy duty gear and a matching 3-pin Weather tight wiring harness.