I am going to be picking up a soldering iron soon, (I already know how to solder) but what is the difference between lead and lead free? Is there an advantage to using lead/lead-free?
If I am going to use lead solder, what is the best kind to use? (60-40, etc)
How should I keep the soldering tip clean?
What other tools should I pick up to work on my 77 280z?