1969 Barracuda 340 Formula S Restoration
Some more electrical info.
I installed the relay on the IGN1 wire to fed the sniper and voltage regulator. I then did a cranking test with 2 different batteries to see what the voltage was on the sniper 12V feed.
Test #1 was with my gutted repro battery with an Odyssey PC 925 battery inside. It cranks the engine just fine, but Voltage was only 10.1 Volts - too low
Test # 2 was an Exide AGM MX24 Group 24 battery. Voltage was 12.1 V which is OK. I'm going to add a battery topper to make it look somewhat stock.