Greg, THANK YOU for posting this for us again!!! I've been thinking about this topic for awhile, but as you know, I've bee real busy...
A few thoughts nuts/bolts related. Notice that he's using non resistor wires and spark plug. This reminds me of Murakami's build requirement for his Plasma spark method. Far as I know today, for the wires, it's either these Accel Super Stock copper core wires that can be had as cut to fit. Or it's the Granetelli's like you have. I'm thinking,for existing wires like yours, you can wrap each with the aluminum tape. (probably spry/wipe down w/ brake cleaner first). There's obviously some current present in/on the tape when running, so some fuel line hose could be the outer insulation jacket to go over each wrapped wire.
That means, remove/reinstall the boot at one end, hopefully not need to mess with the terminal, to slip the fuel hose or similar over the wrap. To remove spark plug wire boots, use straight silicone spray in the boot. Wet it down in the boot w/ silicone spray lube, then gently twist the boot and wire to break the bond that will have formed. It often helps, to insert a skinny thin pocket screwdriver blade, or a thin icepick, etc. up in between the boot and wire outer jacket, just to get the silicone spray in there to loosen things up. Silicone grease eases reinstalling the boots on the wire over the terminal. At or near the spark plug end of the wire, you lay in a short section of stripped back regular wire and wrap the tape over the copper strands for connectivity. The wire will then be connected to ground somewhere as close to the plug as can be. Or, maybe a common ground point can work for each bank of plugs, but he did say and show the best ground connection was right on the plug body, I don't know how to do that.
But this does look good, it's cheap and simple, and will boost the spark, IF you are using the non resistor plugs and wires.
BTW, I Gave Plus 3 Karma for bringing this back in view, this stuff is priceless!!
Thanks, Greg!!
Tracy G.