Not finding oil leaking on pipe or manifold, getting cmno4 possibly in from sunroof- does it scavenge up the drain lines and suck in by turbulance? Also looking for headlight switch and turn signal switch. Also, car is sluggish until after 3gs. Misses and feels like it is failing to advance or retard ignition. Using external vacumn pump we noticed the lower part of the distributor moves. But the upwards facing tangs do not make contact with the downwards facing ones. Should they? replaced plugs, wires, rotor and cap. Any suggestions?