I put a set of Crane gold roller rockers on my cleveland. After setting the hot lash to .022 I noticed that two of the positive stop nuts had the small allen screws on the inside a little further down than the others. Is this normal or have I done something wrong? I checked them 3 times. I used the procedure on compression stroke TDC, then 180 degrees, then 270 degrees more. If you know what I'm talking about I would appreciate a response in case somethings wrong. I would have figured they would all be the same height.