[davesdeville]

Double check that you don't have voltage coming into the distributor if you haven't already, it's tricky to get a good measurement sometimes, or in my experiances anyway. I had a problem like that, no spark, and I measured no voltage coming in to the distributor, but it turned out it was, and the ignition control module died - they like to die in the heat, so if it was a hot day it might end up being that. But yeah if you're positive there's no voltage coming into the distributor, it may be a cut somewhere in a line.