I know this is a long shot, but does anyone out there who is building or maybe just has some leftover parts hanging around have a set of the cast intake elbows from Great Plains? I have a set ordered but Art seems to be having some trouble getting everything in stock. I really would like to move forward on my airplane, just need the cast elbows as pictured, that bolt to the cylinder heads. If you have a set you would sell feel free to shoot me a message.