If you have the wrong leads going to the wrong spark plugs, then you will have a spark when the cylinder is somewhere other than where it should be, which is at the top of the compression stroke ready to drive the piston down and provide power. If you can start your car, it will be running very rough, have no real power at all and your gas mileage will be measured in gallons per mile. You are also running the risk of serious internal damage to the very expensive valves, so I suggest you fix it immediately.
the coil is bad
I'd suspect a bad spark plug at first. Which could be the GAP setting is wrong or the plug itself is bad. There can be other more expensive issues going on, but I'd start cheap and work up.
The timing is too low or it has the wrong spark plugs in it.
If is has spark, it could be a faulty fuel injector.
On mine it had a bad carbarator and water in its spark plug.
Wrong gap, wrong plug, poor groound when you are looking at the spark,
That's not really what's going on. The coil makes the spark, the distributor distributes the spark to the correct plug. If the distributor is not in the correct position, the spark does not go to the correct plug, or goes to the correct plug at the wrong time.
I had the same problem and went ahead and replaced cylinder 1 coil and all the spark plugs and it worked.
It is most likely your spark plugs. Check those out, sounds like your losing power.