Spring has sprung here so I'm able to get the car out of the garage. It runs but I dont have it dialed in. Once I get it idled down, (I think the Quadrajet still needs some tweeking) My timing light shows like 30 degrees advanced with the vacuum disconnected. hook the vacuum up and it dies. Ive rotated the distributor back and forth but cant seem to find where its suppose to be at. My timing light fires sporadically so maybe its bad, Any thoughts?