1998 GMC C1500 Timing

I have found that there is an indentation at the bottom of dist. On the side. With a white paint mark lined up on that and being TDC you can stab dist. When it goes in there is an 8 or a 6 for how many cylinders you have molded in the plastic up top on dist. The rotor needs to then be pointing to the correct one. If you can get a hold of a manual it tells you about it a little bit.