HEI Upgrade but No Spark (kinda)

^^Agree you can simply jump power to the coil/ HEI. Test what it's doing. Clip a test lamp or meter to the coil +. Turn the key to run. Should have "same as battery" about 12.6V. Now twist the key and crank it while looking at the meter. If the meter goes to zero (or light out) it's not getting voltage, and your IGN2 is unhooked or defective, either bad connection at bulkhead connector, or trouble at the ignition switch