Crank pulley hole alignment question

I've read before others having this problem. Stock 1970 340, stock vibration dampner and stock 2-groove crank pulley. Only 5 of the 6 holes line up. My in-family Mopar expert says that's not right; either dampner is wrong or pulley. Pulley # 3814378. I can't find if that # is correct for 1970 340's. Thanks in advance

Pulley.jpg