I replaced that wire and the coil, But it is still misfiring?

This is about a 1993 Rodeo, I got this for free (ha ha) because the air doesn't work,this truck had been sitting for about 1yr. It also needed a new water pump, so I also put on a new timing belt and all the other belts as well. The truck was running ok till it warmed up, then I noticed a spark going from the coil to the top of the engine, so I replaced that wire and the coil, But it is still miss firing. Any ideas.



Thanks,falz