What voltage should you get at your spark plug wires?
The voltage at your spark plug wires can vary depending on the type of ignition system you have. With a standard distributor ignition, the voltage at the spark plug wires can be anywhere from 20,000 to 30,000 volts. However, with a high-performance ignition system, the voltage at the spark plug wires can be much higher, up to 50,000 volts or even more.