The MSD Performance Pro 600 CDI ignition system (p/n 8000) was designed to work with coil-near-plug applications, but what if you are running a crank trigger and a distributor? That’s where the new Single Channel Pro 600 comes in. With up to 680 millijoules available, even high-compression E85 and methanol-fueled engines will have plenty of spark power available, and when you don’t need all of that energy, the Pro 600 can be returned to its 325 millijoules default setting. https://holley-social.