[billyrb]

I'm going to buy a fuel pressure test gauge this weekend. For vacuum leaks, I found the one port (mentioned above) that doesn't have a line connecting to it, but I wasn't sure if that port was to vent to the air or not (can't find any diagrams or images of it anywhere).

For timing, I checked under the hood and it doesn't say what it should be (Vortec engine).....only says timing is controlled by the computer, yadda yadda yadda. Does anyone have the spec?