That one is for bigger duration cams, adjusting 2 valves every 90 degrees rotation. The other MP chart is for everything else, adjusting 4 valves every 90 degrees rotation. Of course you, we all know that. Never had a problem using either. Pretty fool proof. Use it, check/set them that way always to be consistent not doing it willy nilly or inconsistently. Stay on top of any changes to lash checking things at the same point on the lobes. Rotate the crank to line the mark on the balancer with the timing cover every 90 degrees and check 2 or 4 valves. Not seeing what the issue is here, other than laziness with rotating the engine over every 90 degrees :rolleyes: