new gauge cluster now wont start

Well I just bought a 72 duster and wanted to change the cluster because most of the stock ones were not working. After I wired it all up, I get no response when I turn the key. And on top of that the power coming to the ignition is "hot" with key in off position but when I move to start position it has zero juice. I am really at my wits end and could use some help. Thanks in advance!