1968 Barracuda Notch 340

Would adding material to the top edge on the inside radius to make them "more" even help?
Is the bumper semantical? could you flip the tips if so?? IDK
I had the same thought recently to swap the return ends, Ill have to see if the bumper is symetrical or at least very close. The other idea of filling the gap on the top rail would be simple but I don't like how far the ends are protuding. Thanks