273 questions...a few of them

67Dart is doing a good job here so I won't mess things up with a different point of view. Don't feel like the Lone Ranger. I had similar problems when I rebuilt mine. With the right length of pushrods and shimming the rocker shafts, I was able to get close to the proper rocker arm geometry and lash. Photo is from post #70 on page 3 of my engine build thread. toolmanmike