Valve Lash Adjustment

You would hope there are no metal shavings after a new build like this. My gut says its a bent push rod or just some minor adjustment needed. If I do replace the pushrods what should I use? Also I have access to small flexible scopes to explore the inside without a teardown. Has anyone ever done this? Curious if I can get to the cam with a small scope. I would like to rule out any damage to the cam as well.