New Small Block Stroker Engine Noise

Oh I've have never heard of anyone going one whole turn or 3/4 but have heard of 1/4 to 1/2.

This is right. Depends on the lifters, but it's anywhere from 1/4 to 3/4 turn, depending on the rocker/threads. If you did it visually I'd say they are probably fine in terms of preload.