Often wonder where my brain has retired to. Old 66 383, think that I need to replace timing set and damper. So, before beginning, open distributor and get rotor on no. 1 cylinder, then bring damper around to TDC. Now that I am looking at the cam gear, it is out 180, time mark on top. Also the cam dowel is at 1100 and should be about 4 oclock. So, I think I am safe to just rotate to get old time marks aligned, turn cam 180, and replace. But, WTH is going on that when the marks are aligned, my rotor will be at opposite cylinder, not 1. Any thoughts appreciated as I have now lost what hair I had left. thanks