Here is the best way I can tell you to reinstall the distributor after this type of problem has occured.
Important: The engine front cover has 2 alignment tabs and the crankshaft balancer has 2 alignment marks (spaced 90 degrees apart) which are used for positioning number 1 piston at top dead center (TDC). With the piston on the compression stroke and at top dead center, the crankshaft balancer alignment mark (1) must align with the engine front cover tab (2) and the crankshaft balancer alignment mark (4) must align with the engine front cover tab (3).
Rotate the oil pump driveshaft with a screwdriver if necessary.
The flat in the distributor housing must point toward the front of the engine.
If the distributor rotor segment does not come within a few degrees of the number 6 pointer (1), the gear mesh between the distributor and camshaft may be off a tooth or more. Repeat the procedure again in order to achieve proper alignment.
Tighten Tighten the distributor clamp bolt to 25 N·m (18 lb ft).
Tighten Tighten the distributor cap bolts to 2.4 N·m (21 lb in).