How do I set the timeing on a 2001 4.03 6 cylinder ? Its in chevy silverado.

Are you saying that you removed the distributor for some reason and need to get this setup again. What is motivating your desire to do this?

Double post. Lets settle on one of these threads or the other and stay in it: http://community.cartalk.com/posts/list/2200797.page

Yes, I removed it in order to change my head gaskets.