No spark is usually a issue with the condenser being cooked on a Moby. Check the wiki for the mod to change out to an external one. Also change the bonding strap and connect it between a intake stud and the lower external coil stud.
Master switch from hell could be corroded.
If you have a resistor cap and resistor spark plug there is too much resistance, chnge one for non-resistor.
Points could just be dirty, give them a clean.
External coil could be kaput, if it is chalky looking that is certainly a possibility.
Antiparasite resistor in the ignition cap cold be dead, might need to change that out.