How tight to set solid lifters

Just found out that cold, or hot, my lash does not change one bit. This is an iron block 340, Edelbrock aluminum heads, with aluminum Harland Sharp roller rockers, and Smith Bros. ball/cup pushrods. I set them all at .022" cold, ran it to full operating temperature and the lash is still .022". Lash of .022" is per 20-246-4 Comp Cams tag (270/270, .468/.468). Even checked it again hot & cold after a few hundred miles with the same result. My theory is that every single piece of metal expands at it's own rate. It just adds up to zero on my combination for some reason. I used exact same method to adjust/check them in the correct order using the degreed harmonic balancer and the adjusting order as shown on an old Mopar decal I have.

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