Does this look like the correct air cleaner for a 67 GTX? It came with my car but the previous owner didn't know if it was the original. My friend has a 67 and his air cleaner is similar but is a little different on the front where the indent is (indent is angled more toward the driver side snorkel rather than in the center) but his car has air and mine does not. If it is not for a 67, what do you think it is for?