Thread: 355 build HP and Torque?

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Ok, I'm ready for my next lesson.

I've been thinking about valve rocker geometry and push rod lengths.
I was under the impression that the rocker pivot point was located a little lower then the endpoint contact points of the valve stem, so that as the valve approaches it's maximum openings and when the pressure against the valve stem is at it's greatest, the pivot angle in relation to the valve stem is crosses over the 90 degree point, which would result in the least amount of sideways travel and the least amount of side pressure on the stem as well as the least amount of sideways rubbing between the contact surfaces,

I would like to make a scale cad drawing of these relationships so I can better understand the variables and more easily communicate these principles to others. And to apply it directly to my project and cam lift.

Where can I go to find the exact geometry and dimensions of my setup? GM 906 Vortec with stock rockers.

And please feel free to present a detailed discussion on this subject, and to fill me in on what I don't know yet.

Thank you.