Car feels "weird" also noisy

[Phewsion]

Hey

I'm not used to how a Forester runs, so I'm unsure if this is normal or not (Was used to BH5 TT)

Firstly when the Turbo sucks in air it sounds like puffing, On the TT when I put my foot down you could hear the sound from the air being sucked in , in the Forester you hear it but it sounds weird, E.g if u turn on a vaccuum cleaner and quickly cup and uncup the end (Not sure how to describe it any other way), Also you can't feel the turbo kick in just hear it

Second, Noisy injectors I think, I've watched youtube clips of BEB and it doesn't sound like that, just a loud tapping and it goes in time with the turbo puff (Makes the noise on and off boost tho, just on boost the First problem is in perfect sync with tap tap noise) Similar to

just not as noisy

The original owner ran it on 91 for about a month before I got it, I've had it fully serviced, new oil belts etc.. I've replaced the spark plugs and the leads and I run it on 98 now,

Is the turbo going the way of the dodo, I don't even know what sort of turbo it is, do I replace it with a 2nd hand one or is it rebuildable or should I upgrade it (if it's poked)

Or are the Injectors poked?

Or is it something else entirely?

Thanks

Update: After driving around the puffing I thought it was is more of a Flutter, so does that point at the Wastegate now?