Can you describe the add-a-ball operation on this game? My impression was that hitting a replay score or hitting the special lit the extra ball feature instead of awarding a replay.
Does match award a replay?
I picked up a Spirit of 76 that was wired that way - it was a 2 wire change.
Also:
https://pinside.com/pinball/forum/topic/-question-on-1976-gottlieb-new-york