MSD Ignition 6520 Digital-6 Plus Ignition Control Reviewhttp://tinyurl.com/lrzzaw8 MSD Ignition 6520 Digital-6 Plus Ignition Control Adjustable rotary switches in 100 rpm increments.Single stage retard for nitrous and top end performance.LED display warns of trigger signal problems or faulty charging system.Polyurethane Potted for vibration/ water protectionEnergy output: 135 milliJoules per spark
