right the valve will have started moving then,
my back of the envelope estimation didn't consider the 0.050 cam lobe lift specification which means the ramp starts even before that point a tiny bit on the lobe, and the rocker arm is already amplifying that travel by about 1.5x, i think a 235 is 1.477:1 ratio on the rocker?
so then the valve will likely be moving before TDC even on a cold engine
Jerry is right to measure it, because even after you have a model of all the curves of the lobes the tolerance stack up will be on the order of the distances we are discussing anyway.
engine to engine will be different too, that's why you always need to time them, not just assemble the parts to spec.
-stan
