What motor is in there now? And this is on a cen car? I would look into a budget budget motor. Im not sure if getting a fast motor for a newbie would be a good thing or not.

Youll probably go faster with a slower motor. Then once you get the hang of that motor then possibly buy the tz. Id just run what you have now. You put in a tz and go racing your first time , its not going to be good.