Hi Keith...this Ford Article isn't the best scan I've ever done but the article is very
informative....
http://www.gessford.com/images/428-03.gif
and a few more articles.....
http://www.gessford.com/images/428cobrajet.htm
Page 32 and 44 answer more of your CJ & SCJ question on the 428 and also the 429
http://www.gessford.com/images/FordMuscleStory.htm
Regards, george