[ga-stepside]

Originally Posted by Fbks_Cruiser

I thought of this on my way home: I agree with dmj. Trace the wires and check the connections. Somewhere there may be a poor connection or splice. Carries enough current to see 12v on your multimeter or your test light, but not enough current for the distributor to operate.

I had this problem a few years ago on my Z's LT1. It had shut off a coupe times for no apparent reason but always restarted. Then on a long trip many miles from home it died on the interstate and would not restart. Turned out to be the +12v coil wire has started to die at the connector one strand at a time so it was not capable of supplying enough current.