Introduced more than three decades ago, GM's HEI ignition system has capably powered tens of thousands of vehicles over the years. The setup has remained popular with performance enthusiasts to this ...

Horse Sense:Unfortunately, we were not able to get to the track to test Sal's Mustang before our deadline for this report. We plan on following up to see how his high-miles engine runs with its new ...

Accel's single-point "blueprint" distributor is physically similar in appearance and layout to the traditional GM small-cap points-type distributor. The greater the points' closure time (dwell), the ...

Increased performance and reduced complexity don't often go hand in hand. But in the case of the new Digital 6 Plus ignition control module from MSD (PN 6520), the benefits of an adjustable two-step ...