What have poeple found to be the best way to route the number 6 and 8 plug wires? I seem to cook them about every 12 months. This time around I've used the DEI woven heat sleeves. I've routed them through the opening below the number 2 primary, but above the primaries for 6 and 8. All spark plug boots are 90*. The fact that the number 2 primary runs across the top of all the others is the biggest PITA ever.