Gze is clearly the best choice. You have a nice fat torque range and still tons of top end power. Still not enough power? Chuck on a pulley kit and you'll be blowing t50's like no tommorow. GZE's come with oil squirters, huge fat rods and an ecu that can handle being boosted up and run aggressive cams as well. Still not enough power? Turbo it and all will be solved.