I'm sorry for this being long. Couple days ago my car started stalling on me right after starting. I presumed it was either the TFI module or the PIP in the distributor as I have had this same problem in my other mustangs and those were the culprits. Neither one ended up being the problem. Anyways I changed the distributor and the TFI and in my haste (I was late for a date) I did not mark where the rotor was pointing when I removed the distributor. Put the new one in, timed it and went on my way. At WOT the car would miss in the upper RPM's. Did a search and found out probably have the distributor off by a tooth. Today put in old distributor and TFI, timed it and now it pulls great with no missing. When I timed it I had to rotate the distributor even farther clockwise then where it was originally, by a lot. I've been told that when you put in the distributor the rotor needs to be pointing where it was when removed or you need to have the #1 cylinder at TDC and the rotor pointing to the #1. I'm not sure if I have either of these. I know this sounds stupid, but will the engine run if the distributor is not in the right position, such as the rotor pointing to a different point than #1 when #1 cylinder is at TDC? (hopefully that makes sense) I put my scanner on it, and I am not getting any codes. Could my engine get messed up if the distributor is not in the right spot, but the car pulls and drives fine? Thanks for any help and again sorry for being long.