Hi tinman- wow, that's quite a varriation. I guess what you're saying is that the inaccuracy may not be in the cam grinding so much as in the other components, or the stacking of several components? I can see how this could add up to more and more error. How noticeable is an error of say, 5-6 degrees?
As for my cam info, I have the card with me, but it didn't have overlap and LSA printed on it. Joe and George figured the LSA for this cam, but I'm still playing with the degree wheel to try and duplicate the results on my own. Little success, getting dizzy...
I read the cam timing tutorial on the Iskendarian website http://www.iskycams.com/techinfo.php
) and was amazed how close my particular cam spec.s were to the theoretical example- within 2 to 4 degrees.
Anyway, between learning to read the wheel and set up the dial indicator, etc. it doesn't look like I'm going to master this in a weekend. Thanks for the illustration!