New Small Block Stroker Engine Noise

The guy at Crane said .060" but he also said 3/4 turn so that does not add up. I am running a half turn now and I believe the loud ticking noise is the exhaust leak. So I am going to get the exhaust leak fixed, try 3/4 turn, and see what happens. I don't mind a little bit of noise but not like what was heard in the video.