The timing marks. I reset them on the cam, crank and IP. I was one tooth off on the IP the first time and had no start. I moved the IP forward one tooth and the IP lineup pin slide right in, then it fired up with no problem. I moved the three IP timing adjustment bolts back to there original spots hoping to get the timing close to OE. Maybe its different with a new belt, just figured i would give it a shot though......only thing that was strange is that when I lined everything up the last time and the IP lineup pin slide in, it was a little hard pulling it back out after tightening everything up, not insanely hard by any means, just firm. Is that normal? Thats most of the reason i am worried I could be a tooth off on the IP, but again, if I was, it wouldn't start, correct? Sorry for so many questions, just a little paranoid right now.....