440 headers/plug wire Question

I've got a 440 with Schumacher swap and headers in my 68 Barracuda. The headers are bare. I'm using an MSD 6 with Helicore wires. Got a bit of a problem. I go through plug wires every season! Burn up and crack, they're just too close to the headers. Anything I can do to prevent this? Should I wrap the headers or get them ceramic coated? (gets too hot in there anyways)