Just curious how are we coming up fwhp or rwhp calculation to decide on which rocker to use?

btw. Lobe design/ramp rate,spring pressure and rpm have more to do with rocker stud deflection than anything else.

 

the deflection of a regular stud is greater when more rpm is used or a larger cam.
i may not have worded my statement clearly but i saw proof on the engine dyno,my buddies 434 gain HP&TQ from removing 7/16 1.6 rockers and going to 1.6 jesel shaft mounts.