The Pertronix IGNITOR eliminates the hassle of points and moving parts that wear out while delivering twice the voltage to the spark plugs over stock to increase horsepower fuel economy and spark plug life. Optimal performance can be acheived when used w ith the Flame Thrower 40000 Volt coil (sold separately). The IGNITOR is concealed entirely within the distributor so there is no unsightly black box to clutter up your engine compartment. Installs easily in minutes with no complex wiring is compatible w ith 12v negative ground systems and is 50-state smog legal. The IGNITOR is covered by a 30-month warranty from Pertronix.This model is a single point vacuum advance only.{specs}