what are you guys using for plug wire

wanted to know what you guys are using for spark plug wire protectors around the exhaust manifolds. When I pulled the engine out the other day for the paint job, I had # 8 plug wire almost burnt in half. probably why the car has not been running like it should. I had 2 of the sock type insulators on it but hey must have separated and it must have been into the manifold. I thought there might be a better solution. This is on a 440 back on # 8 plug. Thanks.