Will a Stock 489 handle 700hp?

My buddy runs a 10.30 68 dart stroked small block, foot brake & 2 step, I believe he uses the crush sleeve eliminator. He runs 28×10.5 slicks, funny thing was I thought he was running a Dana but no, when I was putting jack stands under it for warm up it was a braced 489 case

Yeah, I'm more concerned with 8 3/4 housing integrity than the drop-out itself.. I've seem many more bent housings than damaged drop-outs.
Back in the day, a buddy of mine had to take a torch to his housing, in order to save his Strange axles and spool. Bent so bad, it wouldn't come apart.
Big torque, lots of gear, heavy car, wheel stands.