doing a timeing belt job on my 420a. anyone have a walk threw on how to do it?

i have helped many times doing timeing belt just never done one on my own.

my car dosent have a distributor so how do i adjust the ignition timeing..etc. how do i find top dead center? what line should the crank be on...etc. i know the basicks of takeing it apart i jsut always let the other person do the fine tuneing.