Our 29' Velocity. 4500lbs dry, trailer is another 1000lbs. Hyd surge brakes. Stock LR hitch setup. I tow the boat with wife's LR4 and my 5.3 Sierra. While the 5.3 V8 makes more hp and torque, it's all above 4400rpms+. The torque curve on the SCV6 is stronger at anything below 4000rpms and...