What are some must haves for a street racing car?

I'm curious what cars you've driven in for any length of time at 100+mph. Seeing internet videos or a Honda with a pipe going 120mph on the open highway is not "street racing".
IMO, $10K is not enough if you have a bse 318 type A body. Good brakes will use up $3-4K of that if you're actually serious about it. The required wheels and tires to cover those brakes will cost another $3K for average ones. Assuming no labor costs (you have to be capable of doing this quality work, or you'll crash and destroy the car or you...) then you've got suspension mods, depending on what you want to do you are looking at some chassis stiffening, plus upgraded suspension parts for another $2K. That leaves you a couple grand for the engine/trans/OD unit/rear axle.