Any time you remove the distributor you need to make sure that the rotor is pointing to #1 cylinder, and the timing mark on the balancer is at 0° or it will be hell to get it back in the right spot again. Now you need to start from scratch and time it. You can remove a valve cover and watch the valves open and close while you manually turn the engine over. Or you can put a compression tester [or finger] over the #1 spark plug hole and 'feel' for the compression stroke. As it gets to TDC watch for the timing mark to come to 0°. Now you can put the distributor back in while indexing the rotor to #1. Be aware that as the distributor gear engages the camshaft gear it will rotate the distributor shaft. You have to start with the rotor away from #1 and try to anticipate how much rotation it will take to get it back to #1 correctly. Sometimes you may need to rotate the oil pump driveshaft with a big screwdriver to get it all to fit together properly. It is a skill, no doubt. Once the distributor is in about right, try and start it and if it does then time it for real with a timing light. If it doesn't then do as I mentioned earlier and remove all the spark plugs, insert them in the plug wires, ground them, and hook up the timing light to #1. Spin the engine while cranking the starter and time it. TIP: Any spot on the distributor cap can be #1. All that matters is that the firing order is maintained.