Sucks dude. As Cam said though, much better killing something in a controlled environment than out on the track / street / middle of nowhere. Ya can't find the weak points until they break.
May I suggest, if the loom and everything is fine, just give it a quick blast off and try another dyno run, and worry about a full cleanup later? That's what I'd do, but I'm not that big a perfectionist. If I can't see it it ain't a problem etc.