Hey Slawski. We have done the install a few times, so let me know if I can help.

http://www.flickr.com/photos/4-5-6chevytrucks/6223324617/in/set-72157627022818563

Here is a sequence of photos of a factory install on a '66 Chevy 292:

http://www.flickr.com/photos/4-5-6chevytrucks/5116764319/in/set-72157602958042517