? Valvetrain Geometry ?

Blufie,
I agree, however looking at the pic(which I can no longer see ...back at work...lol), if I draw a line between the centerline of the shaft, and the centerline of the roller on a rocker that is on the base circle (no lift) it is significantly less than 90*. I use teh 1/2 lift method to verify the position of the tip on the stem, and by that pic, the rocker at max lift is too far outside(towards exh side of head) to be healthy at mid lift. It is at mid lift where the tip will be furthest out on the stem. max lift it should be sucked back to the center of the stem. Unfortunatley, like you say, every head is defferent, and in some cases, each valve could be if the valve job was really shoddy. I am picky about my valve work because I hate shims. I use them as a last resort. but in this case, with it all together and running, i think it'sa viable fix so long as things are kept to reasonable thickness. Sometimes a shim of .015 makes a huge difference in the sweep.