Ok first off Trash the washers period Use loctite.
IF you went with New ARP bolts They Tell you right
off NO WASHERS.
But i have to agree it sounds like the flywheel came lose also Check the dampener.Also one other
question DID you have the pins reinstalled? If
your 292 had them to start with?Some 292s had 3 pins in the crank.

Larry/Twisted6
[oooooo] smile
Adding CFM adds boost smile
shocked God doesn't like ugly.