HEI Upgrade but No Spark (kinda)
Make SURE the module is grounded through the mounting bolts and "flat" on the heat sink.
Make sure you voltage during "cranking"
The Mopar dist. connector is subject to corrosion and intermittent connections. Make certain it is clean and tight. Work it in/out several times
You can hook your voltmeter to the dist. on low AC volts and crank the engine. It should generate about 1 V AC