I replaced both modules with the new style 6x6 modules. Engine now runs perfectly.
The new style 6x6 CDIs are $300 cheaper than the original 4x1 boxes. This required a little work in rewiring the system and extending some wires, but overall saved me several hundred dollars.
Below is the parts list for the components needed to convert to the 6x6 modules.
2 - 965-444 6x6 CDI Modules
1 - 853-125 Connector Bracket
2 - 265-265 Connector Housing
2 - 265-269 Connector Housing
12 - 265-210 Connector Pins
12 - 265-275 Connector Sockets
24 - 260-130 Cable Grommets