At idle my boost gauge reads -10. When I stomp on it, it wont read positive numbers. When I inch the throttle forward from idle it goes up to -8 briefly then back down to -10. What is supposed to be here?
Quick test. Take that vaccum elbow that is partially circled off. That will tell you if the BCS (that thing right there in the pic with the empty vacuum port) is bad. If not, look for the line that goes to the MAP from the same vacuum tree that the line in the top-right of the pic goes to. Cracked?