What do you mean by "upgrade" the ignition wire? And what is the desired result of said "upgrade?"

The engine was designed to operate in its FACTORY STOCK configuration, efficiently with the spark plug wire and coil provided.  Furthermore, you cannot always substitute an aftermarket coil for a factory one, when dealing with a solid state ignition system.  For example, a Crane XR700 solid state ignition system will malfunction if you use an Accel Super coil with it, even if you use the correct value ballast resistor.  It has to do with the different saturation rates of various coils, and the  different resistance requirements of various coils.  In the days of breaker point, non-solid state ignition systems you could get away with this if you matched the resistance specs from one coil to the next, but its not so simple with todays ignition systems' electronics and their matched components.

Well PB, I see you've met the 'if god wanted me to fly he would've gave me wings' guys.

There was only one guy (in last couple of years) that ever ventured into designing his own CDI.  I don't we've heard from him since.
So he either blew up or is a blue streak last reported going thru texas.

The savage ignition sparks every revolution. Is voltage sensitive.  And we can used either a hot plug or stock.  Timing is accomplished by putting it together, no adjustment.

There are a few hot rodders here looking for light in this obiss.  We will help in any way we can.