Timing putting it back in time

Resetting the timing is easier than it sounds. You can "fine tune" the timing using the distributor. First be sure the plug wires are connected properly to the distributor cap and spark plugs. Make sure the rotor is on it's post properly. Once these steps are done, loosen the screw under the edge of the distributor that keeps it locked in position so that you can turn the entire distributor. Next start the car and be careful when you touch the distributor as it has electrical current running through it and turn it slightly monitoring the engine to see if it runs better or worse. If it gets worse turn it the other direction. Once the engine runs properly secure the screw.

If the engine is running rough still the firing order is probably off. The order should be: 1 2 3 4 5 6 Distributor turns clockwise.
Right, or back bank of cylinders are the odd numbered ones.

Good luck to you