Another question is exchanged

Hello together for once Thanks for the answers to my first question!!

Unfortunately, I have another problem.
It's been discussed a few times, but I've got a new Lambda and so on. the problem that the V8 accelerates wavewise.
Not strong, but noticeable!
That's why I asked what that could be? Or maybe it hangs. With the gearbox?

I am grateful for every help!

Welcome