[MJN]

Just my $.02 but its possible the lack of assembly lube caused the cam to wipe out but may not have been entirely the cause. The last one I rebuilt I installed the cam close to a year before the first fire and have had no issues. I would suggest using something a bit heavier than oil like Isky Rev Lube if you're waiting a while after installing the cam so it isn't dry at first start up.
https://iskycams.com/shop/index.php?...ndex&cPath=153

Also, I used AMSOIL Break-in https://www.amsoil.com/p/break-in-oil-sae-30-brk/ and continue to run AMSOIL Z-Rod in my 350, both contain plenty of zinc for flat tappet cam and lifters and I have not had a single issue but use whatever you're comfortable with. Follow the cam manufacturers break-in guidelines as well to properly break-in the cam.
Again, just my $.02.