When I did my ground cables, I ran some 4 Gauge wire from the fender ground to the frame, between the battery and the headlight, and down to a pre-threaded hole at the front of the frame. I did the head -> body ground with 4 ga. as well. I added some others too, but at the moment I can't remember where <img src="/forums/images/graemlins/confused.gif" alt="" />. No real performance difference, but the volt meter seems to register a bit higher now. Couldn't have hurt, might have helped.

My Truck: 1987 XtraCab DLX 22R 4WD 5 Speed Manual
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"Speed has never killed anyone. Suddenly becoming stationary, that's what gets you." -Jeremy Clarkson