Hi all. Am requesting from anyone out there the driver's side exhaust manifold numbered as above. If you have one, I will put you in touch with a gentleman who lives in Nebraska that needs this. Apparently, he has a 75 Buick, BB, with a cracked manifold. The car, according to him, has something under 16K original miles. I sent him one I had but he is sending it back. I eat the shipping. originally he wanted anything that would fit the BBB. He needs one that does not have the heat riser cast into it. Thanks in advance.