Pour gas on it and burn it to the ground. It's your car. But, if it was mine, I would restore it.
You are close but its not the inner or outer bracket . It does have to do with the bracket. But it dosen't have any funtion after assembly. If there is no evidence of it ever being there it is not a 340 car. It is never reused but I always look to see if it was ever there . That is the give away if its not there it should have been there at one time or its not a 340. So it doesn't have to be on the car but the little hole should always be there.That is my guess too.
Or maybe thats why they cry wolf ,To throw us off. And think, Never them. Not there car. I am telling you there is alot of them out there especially b' and e's
Everyone cares about what the other guy did wrong to there car. The Chevy guys all have SS's and they all have Corvette engines. And no one cares. They hand the SS emblems out at most cruises These guys are more worried about what beer is in the cooler. And companies are making them bodies to put their numbers on. Who are we trying to kid here.