Myself I don't see where trick flow heads fall into the best category? For real fasr streetcar I'm not even sure if aluminum heads are needed. But if you wanted some I would think there would be a lot cheaper way to go. And then if you want to get into trickflow territory you might as well go with the W-2 or better I considered taking your car to the strip more often.. anything over 450 horsepower on the street is just burning the tires that much harder I guess...