I have a question I could not find an answer for in my searching. I have a timing cover from a Jeep GW that had a running 360 in it. When I built my race engine I tried to use the is cover and I could not get the distributor in. I went back to the old cover that was in my CJ-7 and it worked just fine. The old cover pump cavity is worn out and I now need to use the fresh cover but it still, with some clearancing, will only work if I pull the passenger side locating pin and rotate the cover until the bolts stop it. I would not run it this way, I was just testing it. I notice this cover does not have any of the casting marks on the inside of the cover or outside. The motor it came off of was rebuilt and had no dizzy gear wear but will not work on any of my four other blocks. Any ideas? I plan to get a new one from BT at this point.