Mallory YL-HP, 25, 26, YL-DP, 31, 32 Series distributors

PerTronix's Ignitor® solid-state ignition systems deliver more energy with greater timing accuracy. The secret lies in the trigger magnets, which spin with the rotor and operate a switching module that requires no external control box. The systems are immune to heat, oil, and debris and install in about 15 minutes with only two wires to connect. They come with a switching module, hardware, and instructions. They're an ideal choice for collector car restoration because they fit entirely under the distributor cap.