Pretty much anything i go at is based on the "What does it need now" principle. I just dive right in, eyeball it out and get to work. Sometimes it has caused problems, like a 5.0 not starting for a week, but it usually gets done. Just rememberm if it wasnt for you, that car would either be in a junkyard, sold to some punk whos gonna smash it, or in a rare case, still buried in the ground.