This cast "Flame-Thrower" distributor from Pertronix is not only affordable but features a custom mechanical advance curve that delivers optimum performance and drive-ability. It comes with Pertronix's famous "Ignitor III" ignition module already installed. The Ignitor III ignition module is the latest offering from Pertronix. It offers Ignition box performance without the BOX! It features 5 TIMES more spark energy than stock points. Multi-spark thru the entire RPM range for improved combustion. The unit has a built-in easy to set REV limiter which is accurate to +/ - 50 RPM. Increased burn time and spark energy for improved gas mileage.