I am going to tell you something that is kind of dumb.
Every mod you do, (that makes it go faster) increases the maintenance, and reduces the engine life. sometimes by a bunch, and sometimes just a little.
If you just want to out run your cousin Joe's Doo, then that can be fun.
But, if you blow your motor in 40 hrs, it is not cost effective.
Just remember the throttle. It keeps it from running wide open all the time. Mods usually just allow you to get more power.
Just consider where you are going, and if it is worth it, to you.
Nate