Parallel yes sorry

BAM Marine has a speed calculator on its web site. When you take the weight of your boat (4800), additional stereo and batteries (350), 3 passengers and a supermodel (700), and 40 gallons of fuel (250), 6100 pounds total and take your 385 HP of the 7.4 EFI and the constant for a straight v hull with a low drive height, you get a predicted speed of 58 MPH. You can go to this web site and determine how much HP it will take to push so much weight so fast. It will take either a lot more HP, less weight, a higher x dimension, or a combination of these to go faster in your Baja.