Plugwire problem

Last night I picked up some Accel 8.8 mm Spiralcore wires for my sparkplugs, installed them and noticed that the boots on the wires were very long compared to stock. Seeing this, I was under the impression (stupid me ) that they could take the heat produced by the headers that, without a doubt, they would be touching. Not the case, 20 minutes later, after taking it for a short drive, I start it up, and realize i'm running on less than 8 cyls, go check, and the wire going to plug 4 was burnt to a crisp, right down to that wonderful spiral core they talk about so proudly. There was nothing I could do, really, those boots are huge. Has anyone else had this problem, and if so, what did you do to remedy it?