Read how to install a MSD Multi-Function Ignition Controller, brought to you by the experts at Hot Rod Magazine.

MSD's Programmable Digital-7 Plus ignition (PN 7531; $900) was the best-kept secret-until now-for dialing in traction consistency on a drag-radial Mustang.

Now available free in the iTunes App Store! The MSD Ignition Wiring Diagrams and Tech Notes app offers an all new outlet for customer help - perfect for late night wiring thrashes.