Big Block ticking? Flat tappet cam. Normal?

.........Any danger running like that for a cruise tonight. I replaced the stripped bolt on the hold down
IMO, you'll likely pull the rest the threads out of that bolt hole if you don't fix it correctly. I'd also go back through all the hold down bolts. Make sure to have at least 1-1/2 the bolt diameter thread engagement while still meeting torque and not bottoming out.