camshaft Identification

Pulled cam out of 1987 mustang to see figure out if I would use it with the tfs tw 170's im bolting on but all I see is 2M5 stamped on the back of it. Anybody have any idea which cam that is or who makes it? I know its not stock because it has a noticeable lope to it and surges a bit at idle, but seems pretty torquey, just want to know the specs on it.
Thanks