Above 3,000 RPM, a single spark stays lit for up to 20° of crankshaft rotation ensuring a complete burn of the air / fuel mixture in every cylinder. A sealed, locking connector keeps the minimal wiring of the 6A tidy for a clean installation in all applications. It can be run on 4, 6 and 8 cylinder engines with a 12 volt negative ground electrical system and can be triggered with breaker points, an electronic amplifier or magnetic pickups.Built-in LED for system checks. Full, capacitive discharge ignition power throughout the RPM range. Compatible with 4, 6 or 8 cylinder engines. Please contact before ordering if you are not 100% sure of fitment. 7 Amp per 1,000 RPM. Digital 6A Ignition Control Box. 15,000 RPM with 14.4 Volts. 12-15 Volts, 7 Volt Start. 8"L x 4"W x 1.825H.