Cobras had the Thunderbird Cam.Good advice on cams, I put a f cam and then an e and then went to stock. Happier for street use, with air conditioning, crusing at low speeds much happier. Guys are get'n good hp numbers with blowers and turbos using stock cams. 'Alphabet' cams were the first performance ford pieces, I think the 93 cobras had them, lots of technology since 93. Someone will correct me if I am wrong.