[CameroN7887]

So lately I've been experiencing a big loss in power but it's been intermittent up until about a week or two ago. Some days I'd touch the pedal barely and it would get up and go easily, and other days it took a lot more gas to get the car to accelerate how it did before. Now recently it has been idling rough, giving me more vibrations in the cabin than I'm used to. The acceleration feels sluggish and like it doesn't pull as hard as it used to high up in the rpms past about 4K. Looking at the repair history the camshaft position sensor got replaced around 25k miles ago, and as far as I know spark plugs and coils haven't been done yet, and I'm bouncing back and forth between spark plugs/coil packs and maybe a problem with the VANOS somewhere? Any help would be greatly appreciated guys!