p/v clearance threory-- bogus or not? what do you think?

[DRASTiK]

I think I'm gonna try and get the test springs on, and then attempt to find the closest point, and measure it that way. Correct me (again) if I'm wrong, but that point will either be just before, or just after the piston reaches it's highest point? If so, then I'll just measure once with every little movement of the crank in that whole area. I just wanna make sure I get it right before I fire this thing up because I can't afford to buy these parts again!! thanks very much for the help so far. I should have time to mess with it tomorrow night after work, then I'll post my results or problems, whichever I come out with