Having trouble with burning my plug wire boots on cylinder 5 and 6 on my 5.0. The heads I have is GT40P Cast iron heads. The headers I have on are BBK Longtube. I have just bought and installed Trick Flow 10mm Plug wires with 45 degree boots and it didn't look like it was going to hold up but I wasn't sure. I also put the fiberglass boot heat protectors on. It burn't the boot and was jumping spark after about 10 miles. I would like to save my plug wires and try to buy smaller 90 degree boots and connectors for those two cylinders and redo the ends to make them work. I haven't had a chance to look into that option yet. Any one know where. I can find those? Anyone else have any suggestions?

 

You can get just the plug wire ends and boots from NAPA, have them go thru their Belden book.

 

you need 90 degree ends on those cylinders.