working on a gasser 5.7 350

hello friends I just put a new engine in one of my 1996 chevy trucks after 324k all went great and runs ok but i went to check the timing with my light and I cant seem to get it anywhere the 0 degree mark .... I know there should be a timing advance connector like my older truck (1995) but my 1996 dose not have one in the same place ???
I am not a member of any GM forum so your help is a great help !