Pertronix Ignitor II

The Ignitor II is similar to a GM HEI module. It works best with a low-resistance e-core coil, so get one of those ($20 Chinese, Magnum engine, GM external, Ford TFI, ...). If Slowswinger switches to TrailBeast' kit, he will still need one of those coils to get a quality spark. Ditto for Ignitor III, and only keep the factory coil with ballast if using the original Ignitor.