I want to buy trick flow heads and i go on summit racing and there are so many different ones. I want a head the will give around 330-350 rwhp with a good cam and intake with a 10 to one compression ratio. There are 170, 170 track heats, fast as cast 190, cnc 185, 205 cnc whats the difference and which one will give me the most power i am looking for?