So uh I know I’m on this asking a bunch of stupid questions but I’m still fairly new to the Honda scene. I swapped out my y7 manifold for a y8 one and swapped over the fuel rail and injectors as well since the y7 fuel rail and injectors were causing my car to run lean. Besides that I was wondering if the valve specs would still be the same or would I have to adjust my valves to a different spec.

 

You don't have to adjust your valves if your just changing the manifold..