The power steering reservoir will probably have to be relocated.
The various vacuum lines need attention so they do not receive pressure, when under boost. An oil catch can might be needed on the PVC line.
What are you going to use for fuel management?
You will probably need to fabricate the belt adjustment, unless Hesco still has the parts..
The throttle and transmission cable bracket will need relocation and modification.
What manifold does it use and does it need modification or porting?
Most kits require a big hole in the hood that needs to be covered.
The cooling system needs to be in top shape with a high efficiency radiator.
I investigated this a bit last year while putting together a supercharged, 4.6 engine.
The engine was built for a friend's XJ, who lives in Nevada, which does not bother with emission inspections.
No way would it ever pass inspection here in California.
Unfortunately, my friend suddenly died about two weeks before the install, putting an end to the project.
So, I have a Russ Pottenger built, 4.6L supercharged engine out in the garage.
350+HP of goodness that will never see the street.
https://www.flickr.com/photos/lwade/albums/72157663342067420
The kit is designed to fit under a stock hood, without any cutting.
The SC kit uses a programable Split Second controller with a 7th fuel injector that injects fuel into the intake of the throttle body, while under boost.
It use a new power steering fluid reservoir, located remotely. See the photo for what you will be looking for
The photos show all the parts in the kit, minus some of the belt adjuster.
The supercharger kit is for sale, if anyone is interested. I have about $3500 in it.
Make me an offer I can't refuse.