Also check out KarKraft. They were supposed to have a FA kit for the Bullitt sometime back.
http://www.karkraft.com/RAMAIR_UNDERHOOD.JPG
http://www.karkraft.com/RAMAIR_UNDERHOOD_SHOT.JPG
http://www.karkraft.com/RAMAIR_UNDERHOOD.JPG
http://www.karkraft.com/RAMAIR_UNDERHOOD_SHOT.JPG