The question is why did that happen. Why did it bend to a half moon position? Can you still get the butterfly out so you can straignten it? If it was me I would try and staighten it. What do you have to lose by trying. If that doesn't work then can you buy just a replacement butterfly?
"Gunner" USN Retired, Airdale
2004 Monaco Signature 44' Conquest. Detroit 60