Resistance isn't everything. You could cut every strand of wire except one, of that blue wire, at the coil and ,have still as good as no resistance measureable, yet when you try to pull some electrons thru it ........nada.
FYI
there are a number of factory "welded splices" in your harness. Maybe 4 or 5 I forget. One of them is in the "run circuit". I found mine under the hood, against the firewall behind the distributor. There are about 4 or 5 wires in it; the ignition supply, the regulator feed, the ignition feed, the choke feed, as I recall. I've never seen that splice make trouble,but you should know it's there.
