ProComp/Speedmaster aluminum heads

Honestly it seems like the last cap would make it better? As in bring the roller to the center.. which I'm also finding out isn't ultra critical with rollers.. it's looking like just leaving it alone it's going to create the smallest sweep pattern..
Anyways I'll head out to the garage turn on some possum face and work on it today...
No, shortening the valve and nosing the roller down with it would take it closer to center. not the best way. lol