I'm on the last stages of my head build and need some recommendations.

I was told that there would be NO benefit using Ferrea stock sized valves over stock B16 valves.

If I got the Ferrea valves I would want to get the bronze valve guides too (due to wear) and that means I would have to take a trip to the machine shop =/

Also, Tom from Port Flow recommended I just run the stock B16 valves since I have good valve springs (Port Flow inner and ITR outer).

What are your thoughts?