If you really want to build a fast car, then the above way is not the correct way. Ideally, you should probably start with the tires/suspension/chassis first before slapping a supercharger on it. I have no idea how a stock Mustang engine holds up to boost long term either.

Matt Farrah drove someone’s supercharged-but-otherwise-stock Mustang and noted the brakes and suspension were suffering to keep up with the extra speed.

I had the same thought, and the fix might be to lower the boost a bit to keep the drivetrain alive - say, to 550-600hp. (bigger blower pulley?) This might be un-Jalop but being stuck on the side of the road with a car that won't go because you blew something up is kinda un-Jalop too.

I think that is a perfectly valid concern. I don’t know enough about the strength of the Mustang’s components to say one way or the other.