Hello Everyone, I am going to buy the Hellion Twin Turbo setup for my mustang. I'm building a parts list and need some help to finish it up. I want to purchase PI heads but haven't been able to find a reliable source for some. I want to buy the Stage 3 comp cams but am also wondering if they're a direct fit into the PI heads. Also, I will be running 60lb injectors but want to know as far as spark plugs which would be recommended and also the gap. I have alot more questions but will ask once I know that there is someone out there that may be sabby with this turbo setup. Thank you for all the help!