slant six starting problems

Take a BIG clip lead. Make one if necessary...........out of no 14 wire. Jumper from starter battery post direct to coil + terminal while cranking and see if spark "comes back" or engine will start.

Also have you checked high tension coil wire with an ohmeter?

I can not remember which wire. If you ground one or t' other of the distributor connector to ECU wires, with key on, the ECU will produce a spark each time. Try each wire.

FYI, a jumper was placed from battery + to the power feed to the ballast while cranking (dark lblue wire) to put full batt voltage on the ballast. But it was not tried directly to the Coil +.

The coil - was grounded Del, and it only sparked weakly. Not sure why not, as there was a strong spark when the ignition was turned off, adn ballast gets hot with ignition on. Coil is new. The grounding of either wire from the distributor was not tried.

No comment on the essentially 0 volts AC out of the reluctor when it was turned (cranking) as measured?