What’s wrong with the original AVS? Is it a 4640? It should be a 750 cfm, equal size primary & secondary throttle plates.

Don’t pile on me for this but I don’t think electronic ignition will help, but it doesn’t hurt to try. Don’t mount the box right away, just bolt a ground wire to it and drive that way to see if it helps.

Hate to drill holes in the new underhood paint job in that nice Charger.