what are you guys using for plug wire

Its not the wire, its heat...tranyduster,

Now before Ya'll go bashin on Me, ...

Go to a local Bone Yard, find a 6.0L GM,
Pull all the spring loaded boot heat shields, cut down the 'open end' & shorten
the release spring as needed, Done & Done...

Oh, one caveat,
just to really anger the purists LOL !!!

Put a liberal amount of D7AZ-19A331-A Motorcraft Silicone Dielectric into the plug boot
(spark plug end).