What Heads to use

Street car or race car? What budget?
Guess a street car not a huge budget if I have to wait to get what is really needed because of money I will.It will also be going to the track.Its a car im probably not going to be out riding around town alot but i will be driving It.I kinda live out in the sticks so there is alot of space to launch it up and down the road and then take it back home