When it comes to installing your own white gauge faces, first things first......I wouldn't wish that hell on anybody. With that being said, if you have the money, have a professional do the installation. If your low on cash, the job is do-able but, again, a pain in the rear. Do a search for white gauge faces and check out these links.......
http://forums.pelicanparts.com/showthread.php?threadid=74970&highlight=white+gauges
http://forums.pelicanparts.com/showthread.php?threadid=92652&highlight=white+gauges
Here are some pictures of them installed in my 83.....
Good luck!
Stephen