MSD – Riding the dots! This one set the standard for programmable ignition control.

If you’re a consummate engine tuner and know how to take advantage of minute changes in timing during a quarter-mile pass, then the Programmable Digital-7 Plus is the ignition for you! All of the standard programmable features such as Individual Cylinder Management, Step Retards, Rev Limits, Shift Points, and more are included in the Plus version but you also get more. Much, much more.