96 accent timing belt change

I changed the timing belt in my car this weekend and in the process may have screwed up. I removed the dampner pully from the crank shaft I could not find a timing mark. The one on the cam was easy but the crank I had to put a mark on with a pen. After assembly I turned the engine over manually 4 times and everything seemed fine. I got it out on the road and it seems like it lost some power. When going up a hill it will down shift into 3rd but it does't seem to pull like it used to. Could the belt be off by a tooth? If so where is the mark on the crank?

Ok can some one tell me this. If take off the inspection cover on the cam line up the mark where should the timing mark on the dampner pully be?