I just got the motor back in and running, but now i have a SES light, i took most of the vaccumm lines off the top, but i think that one of them could be causing the light. Does anyone have a few shots of the top of an unmolested lt1?

 

don't have pictures. what lines do you remember hooking back up and i can tell you if you left something out

 

There should be a diagram on top of your radiator cover showing the vacuum line and other emissions related connections.