I have an 83 Imperial with a shade tree carb conversion. The 318 is equipped with a Carter BBD and a distributor with points. I changed the points and now it is not drivable , starting is no problem. Symptoms are rough idle and runs erratic with revving. I get 16 inches on my vacuum gage at idle and it holds steady. When I changed the points I removed the distributor to install , I did make a mark for reinstallation. The points are gapped at 016 , I checked compression and each cylinder is just over 100 LBS. The spark plugs , cap , rotor , wires , and coil all good. What am I missing?