MSD Programmable Digital 6AL-2 Ignition Box # MSD6530MSD Programmable Digital 6AL 2 Ignition Box # MSD6530 Ignition Box, MSD 6AL 2, Digital CD, Programmable, with Rev Limiter, Red, Each Ignition Box Output: Capacitive discharge Circuitry: Digital Rev Limiter: Yes Timing Retard: One stage Data Acquisition: No CD Voltage Output to Coil: 535 V Spark Output (millijoules): 135 Millijoules Minimum Operating Voltage: 10 V Maximum Operating Voltage: 18 V Ignition Box Color: Red Coil Included: No Warranty: 1