Tuning
there's nothing wrong with learning or the quest for knowledge and desire to expand your skill set. but... all of this could be answered with a simple search here and reading thru the archives of posts along with, *gasp* u-tube.
i mean, sure if you have specific questions this would be the place to seek granular knowledge of particulars. but that would likely come at the time of performing the actual work, which-- shockingly-- would mean you actually had a car to work on.
get a car first, and then worry about the rest.