Low voltage or voltage drop from loose or corroded connections are the most common cause of electrical problems.  Check your battery cable connections and disconnect then reconnected the connections on the screens under the dash.  A loose connection at the starboard helm breaker panel near the helm seat or loose wires at the ground buss under the dash could also cause intermittent electrical issues.

I’m having problems with my screens on my 2020 25 LSV FLICKERING. My boat will not turn on. My screen froze while I was on the lake so I turned the battery off and back on and the screens won’t turn on and keep flickering. I replaced the batteries, ANY HELP IS APPRECIATED 

Coop, it’s always an adjustment changing industries.  I’ve done it twice in 30ish years.  Good luck in the new venture, hope you stick around here though as a Malibu fan. 

Might have to buy some puts on MBUU and MC hehe

I'm not sure I would use 23#/H injectors in place of 24#/H in an engine with no feedback.  My understanding is that the fuel map is intentionally rich, but I don't know how much.  Running the engine lean is asking for trouble.