Burnt out plug leads

[Stew1337]

I have issue with burnt plug leads on cylinder 2 on my 440, hooker headers and plug lead cap right on header, caps don't last long before burnt and drops cylinder due to crossfire, they last no time, don't drive often so maybe an hour
Tried the high temp msd ones, they last a little longer, maybe 2 hours, but not the answer.
Exhaust temps between 390 and 420.
Not enough gap to get Kevlar shield in between header and lead
Any ideas

 

[WP29440SE]

how about a picture of exactly what you are talking about

 

[BeepBeepRR]

Have you looked into ceramic booted wires? Taylor wires makes them. Here they are on Summit site.

https://www.summitracing.com/parts/...MIwtHNiOPO6AIVSl8NCh3y0ABVEAQYAiABEgKGxvD_BwE