Once upon a time I read in a Mustang Monthly about buying and installing big block shock tower gussets(Braces) that go around the shock tower and were factory welded on . They came only on big block cars but over the years I have seen cars with one only factory correct as ford just used what they had in stock. I have since purchased a Calif. car that has one original big block tower and one regular in a 302 car. I didn't believe it myself as being factory correct until I did research on it. Would like to buy some braces to do the other side as well. Thanks!