Vz ss sputtering at high rpm

[The guy that know nothing]

My vz ss has a problem while driving went to put my foot down and it sputter or chugged , everytime the rpm hits around 4000 it dose it , it starts fine but when it’s idling sometime there’s a random backfire/pop.

I’ve change spark plugs, plugs wire, fuel filter and still doing it , just don’t know what to do really a bit lost and need the help

 

[Fu Manchu]

Faulty coil/s?

 

[07GTS]

u need to be able to see the engine data see what the 02's are showing and the airflow, that will show u what bank is an issue or both and if its a lean/rich issue causing it or just a misfire, usually a mis will show a code so may be fueling/sensor issue of some sort