If my ultimate goal was to reach 550RWHP, which would be the route to go?? I would obviously like to keep my Procharger on either application, but I don't want to regret any decisions later. I would love to have a DOHC motor, but how much more $$$ would it cost?? If the conversions could be done with forged internals on both, and the cost difference (assuming there is one) is reasonable, I would like to get the DOHC. What do you guy's recommend???