Killer spark is only as good as the secondary side of the ignition system. For snappy performance, your MSD 6 installation should be backed up with 8mm spiral-wound plug wires, a Blaster coil and ...

Horse Sense:NMRA racers should consider themselves lucky the sanction even permits the use of MSD's 7531 ignition box in some of the heads-up classes. In a classic, racing-rules catch-22 (where a kick ...

So you're wondering what's the big deal with "digital," are you? Unless you've been hiding under a rock for the past decade, almost everything you hear about is new, improved, and digital. The "old ...