I've always put the gaps between 2 and 4, and 8 and 10 o'clock looking at it from the top with 12 o'clock facing the lifter valley. Top and second at 180* apart. Oil rings 180 apart as well. From instructions I saw long ago, and thinking it will keep the gaps away from the thrust side of the pistons. Seemed to work, but I would not try to out think any guideline provided by the manufacturers.