You've got a piece of strap you ask, "is this the right mount". The answer is, not exactly. In stock configuration there's a wishbone like yoke that ties both inner aprons together and then bolts at the center front of the original front cross member for supporting the fenders and allowing some body flex different from frame flex. Depending on where your engine ends up you might not be able to use that, many times that happens. In that case substitute brackets mounted similarly to your strap would do. You'll need something with more substance and a couple folds for strength. Go to Bob Drake's online catalog and look up HR-16138 to see the bracket he offers. If you don't want to spring for his you can at least see how to fab similar. Those two holes down low in front might be added by a previous owner for who knows what. They aren't on my '41, and I don't see them in other inner panels I've seen in pictures. BTW that other hole above and to the right of the strap mounting hole is for the upper radiator brackets. If you've got a stock radiator you will see some keyhole shaped holes in the side braces of the rad that the rad bracket bolts drop into. These are simple, flat straps but with a twist/step in them. Again, those can be found in Drakes catalog.