Those look like the original plug wires, at least at the plug end. I’m pretty sure I used a Crane Cams ignition conversion in the 250C but it could have been a Pertronix. Either way, it did run better after the conversion. The 250/8 had points controlling an electronic ignition which worked ok until the points developed a non conductive film. The ex was not happy when the car died on the way to work.

Michael