I've got the first gen b16 in my 91 hatch, and I can't seem to find the correct tb gasket for that motor. I went to Honda and tried the b16a2 and b16a3, but they were way different. I think this is because they have the map sensor on top of the tb instead of on the firewall like the early integras do. I'm using one from a 90-93 integra but it didn't match perfectly and I'm getting a very high and surging idle and I think this is the problem. So if any one knows which gasket would would please help me out, thanks.