Problem with my headers
like: http://www.ls1speed.com/catagory.cfm.../%20Electrical (towards the bottom of the page)
Sounds like you're missing two 02 bungs. Each header should have two bungs. One should be on one of the primary tubes, and the other should be close to the collector. The farthest back bungs on your headers are for the 02 Sims since you're running the ORY pipe. The two bungs closest to the motor are for the 02 Sensors.
. All that I have seen have the front O2 in the collector and then the rear is in the Y-pipe if you are running cats. If you are running O2 sims, you do not need a rear O2 bung. Just plug the sim into the harness and zip tie it out of the way. 
