Darkfly, the stock wires have about 6K-10K ohms per foot. You have really low resistance wires!
I am running solid core wires on mine right now, but I had to use the stock coil wire to gain some resistance in the plug circuit. Without some resistance you'll get electrical feedback to the ignition module, and have all sorts of misfires.
If you do get misfires with those low resistance wires, don't change them, just put a higher resistance coil wire on it.