http://www.442.com/oldsfaq/oldsfaq.htm This FAQ will give you most the info you need. You have to take it with a grain of salt because most of the info on there is "dontated" but guys who are either professional Olds guys OR self proclaimed professional Olds guys. The rule of thumb I use to get information is to ask my question as many different people I can, and lean toward similar answers.
Good luck.
John