I have a 06 f250 which is my baby but i know sooner or later i am going to have to replace my engine, so the question is, should i get a 12v or a 24v common rail to set into my truck, i will buy it and build the engine up for street but i also want to have a fast driveable truck!What are the first things i need to do to build a strong hopefully unbreakable engine?