| The collapsing of the lifter would only come into play if you had some magical tool to measure valve lift from INSIDE the cylinder. We are not measuring valve lift here. Woody was measuring the top of the lifter. The top being the part of the lifter that makes contact with the face of the cam lobe. The only thing we care about is when the cam actually starts to make the lifter move. The collapsing of the lifter is irrelevant. Valve lift is irrelevant. We are aligning the centerline of the cams with respect to the crankshaft. That's all. This is done by measuring when the lifter starts moving and stops moving, cliff notes version. You seem to be saying that due to the lifter collapsing, we are going to get bogus readings. The lifter can collapse all it wants and it's not going to change the reading where he is measuring it from. He is not measuring the valve face. Again, he is measuring the top of the lifter. A solid piece of metal that cannot compress. So in reality, Woody, Mike Smith, I and others have all gotten great results from using this method which you refer to as "half-assed". I would recommend getting your hands on a lifter and take the thing apart to refresh your memory on how it works. Then look at the pictures of how and where Woody measured his cams for degree'ing. I think you will see there is no error in his way. I personally have experienced two different Z's that had their cams degreed and they are both the two most responsive Z's I have ever driven. Regards, aj
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