Pertronix D185604 Flame-Thrower Electronic Distributor Cast for Alfa Romeo Plug and Play with Ignitor Non Vacuum All new lightweight cast aluminum housings Tailored advance curve for optimal performance and driveability Integrated Ignitor electronic ignition delivers twice the voltage to the spark plugs, increasing horsepower, fuel economy, and spark plug life Rotating cobalt magnets trigger a Hall Effect integrated circuit which enables precise timing High dielectric strength cap with brass terminals