Oil and Pods, 2 very sensitive subjects to discuss. It's like politics or religion. I'm sure that Aleister Crowley had pods if he had a bike back in time

One more thing, pods need to be impregated with oil... mineral or synthetic?

My rattle can of KN filter oil I bought for over 30 years ago was still working one year ago!
But seriously... no engine mods, why remove a working air box and correct jetted carbs? Make another box, shiny metal....
The suction noice from the carbs can be irritating.
Upon that if using flat slide carbs with clattering throttles, clap-clap-clap-clap......!!!! I was happy to adjust carbs + ignition for low idle... I have to increase idle rpm to avoid the throttle clatter. My first reaction when hearing it was a missing lash cap or valve adjuster screw going loose.... I understood after 10 seconds that the sound came from the carbs, especially cyl1 carb.
Opened the carb upper cover to ensure that the screw holding needle and throttle was tightened.
Adjusted ignition when I thought it could have too much advance on low. Could retard a little bit but it was still clatter.
I understood that it must be normal flat slide noice and google carb clatter and verified normal flat slide sound... clap-clap-clap...

Increase idle....