Ballast resistors

The ballast resistor is wired to the key switch when you are in the start/crank position it allows full battery voltage to the coil to get quicker cleaner starts. When you release the key to the run circuit the power to the coil is then reduced by the ballast "Resistor" to 5.5-6V.

Again...more power in more power out.
You can bypass the resistor and feed full 14V to the coil but it will overheat the coil fairly quickly and boil the oil inside causing failure. A stock type coil will usually last about 10-20 minutes under load, the current A688 coil can go up to 1 - 1.5 hours before overheating. This is based on testing under a 50% load typically at 3000 RPM as if you were cruising back home on the highway. The harder you push the motor the more Voltage the coil will have to build to jump the spark and quicker the coil will overheat.

Your ignition system will only produce the Voltage required to jump the spark from the electrode to the ground strap. If you have your plugs gapped at .025 it may only take 15KV to create a spark, gap them at .050 and it may take 30KV to make that spark jump. As RPM, cylinder pressures and fuel density within the combustion chamber increases it creates an environment of high resistance, thus requiring more voltage to get that spark to jump to the ground strap.

With this in mind and you have a system that brags 50KV-80KV output, it may only be producing 20-25KV to fire the plug so it really doesn't matter how high it can go, it's what your engine requires. Our testing as well as others like Champion can show you that a conventional Hot Rod, naturally aspirated running pump or race gas with 12:1 compression or lower running at 6500 RPM will only require a max of 34KV to get a good hot spark and light the fuel off efficiently. Even if it's a 50KV system it'll never get there.

You can force your ignition to build higher outputs by increasing plug gaps, or by running excessively rich fuel mixtures this can cause an overloading of the system and achieve no performance gains.