By all means you don't have to take my suggestions but, for a stock rebuild (stock boost level) I use the factory gaps. On a high boost engine I like .020" top and bottom gap.
Follow cruzn57 link he posted. Lots of good info on that site.
I would change all of the fluids, filters. & don't forget the fuel filter.
If there isn't one on it already invest in a "hot wire kit" for the fuel pump. Easy to install and insures you get the proper voltage to the pump.
Get a...