all dirt track parts mean is that they are set up for dirt track racing. they still have the stock cooling passages, and work just fine on a street engine. in fact they tend to work better. remember that dirt tracks are short tracks, which means that low end and mid range power is what is needed. and that is also what is needed for the street as well.
the next thing would be to get a ranger cam and install that. after that pull the intake and have it ported, both the upper and lower intake. you can also install a larger throttle body, i think the stock one is 55mm, so an upgrade would be a 60mm throttle body. bump the ignition timing to between 10-14 degree initial, remember to disconnect the spout connector before setting the timing, and remember to reconnect it when you are done. swap the engine driven fan for an electric one.
these are good places to start.
my mind is aglow with whirling transient nodes of thought careening through a cosmic vapor of invention.