While installing my rocker arms (pro mags) I noticed the roller (non-self-aligning type) doesn't center itself over the valve tip (side-to-side wise).

I've been loosening the studs and moving the guide plates around, but I'm still unable to get the rockers centered.
I can get one rocker centered, but the other will be off a little.

To make them perfect, looks like I'll need different guide plates.

For now, I've split the difference between the intake and exhaust valves.

Does it need to be perfect??

BTW; the guide plates are made by Sealed Power.

 

They are designed to be like that.

The purpose is so that the rocker will be slightly off-centered, to make the valve tend to rotate.

 

Learned something new.
Thx RB.