66 Barracuda Headers - Help!

Thanks for all the replys guys. I have been back and forth with the original owner for the last few days with all of the info you all provided and he thinks they might have been cyclones now that I mentioned it and he looked at the pictures here

That leaves me with a question. Dougs and Cyclones. One better then the other if I need to replace them? Are Cyclones even still available?

Thanks!

Robert