Big Block valvetrain issue advice needed

Daves69 said
Just throwing some other simple stuff out there. How's the end of that shaft look under the rockers? Is it still round when torqued down? Flatness across all rocker posts good? Consistency of rocker tip wear across the bank?

All rockers, no play on shaft and spin around freely with no bind.

Gonna find old valvecover somewhere cut it so i can start up and pinpoint exactly
where noise is coming from.

Thanks