DuraSpark vs Pertronix

I have a Pertronix Ignitor 1 on my 1962 Fairlane 260 V8, with the Flame Thrower coil and the resistor wire replaced with a regular wire. I'm happy with how that setup works, so I bought the same for the '72, with the idea of instead of worrying about the resistor wire, using that feed to trigger a relay to power the coil. Come to find out someone converted my points ignition to a DuraSpark-type setup at some point. So my question is, is it worth it to pull that stuff out and put in the Pertronix setup? Or am I best to stick with the DuraSpark-type setup of unknown age?

It's a dark blue. I have no idea if it's a Ford box or aftermarket. No lettering on the box. I don't know how well the installation was done other than that the engine runs. But instead of the box being plugged in, wires were cut and spliced in. I also don't know if the original distributor was converted to duraspark, a duraspark distributor was installed to the existing engine, or the engine was replaced and came with a duraspark (but the emissions sticker on the valve cover says 1972). I don't know what's original since the Marti report said 351C-2V/C4 but the trans oil pan is definitely a C6 pan. Since the starter works fine, I don't really want to pull it to find the block casting numbers.