Seems to be a question asked often. Don't know if this has been posted before. Looks like some are on the Tech archive.
http://www.forabodiesonly.com/mopar/showthread.php?t=1458
Here are all the chips from 1964 to 1972 Plymouth and Dodge.
http://www.forabodiesonly.com/mopar/showthread.php?t=1458
Here are all the chips from 1964 to 1972 Plymouth and Dodge.