Need help with electrical problem

When I first fired the car after 25 years with Flamethrower III setup it lit up the engine bay with the old Taylor solid core wires. Sparks were flying everywhere with the old Solid wires that actually were still soft and supple. Went to the resistor wires in the same config with 45% plug boots for my 383 with stock manifolds and presto she was singing. They maybe Thunder Pro series. Get a good clamp die tool and straight and 90 ends for the dizzy side to ease installation.