I'll double check those connectors.
Not sure if a 2 volt drop while cranking is acceptable.
FYI... I have a post started on the Holley sniper forums also and there thinking it's more of a fuel and timing issue. I'm making some suggested ECU changes and we'll see how that goes...
Link to Holley post....
https://forums.holley.com/forum/holl...ank-cold-start