As I understand the history on the 427SOHC - Ford designed the engine to compete in NASCAR - the other manufacturer's could not be competetive with the 'cammer' and raised such a stink that these engines were outlawed for NASCAR - hence, they went to the dragstrip and boat racers. I think there were only approximately 600 of these engines built by Ford.
I have a 427SOHC in my ERA cobra that I found new in the crate in an auto parts store - Peter at ERA has one in his car and there is guy in the Pennsylvania area that has another one.
There are some pictures at the following link that you may be interested in seeing:
http://members4.clubphoto.com/steven...19/guest.phtml
Dee Walters/Cammer