Ecoboom, stick with the v8s, my boss's new ecoboost F-150 blew cylinder 3 so bad going up a hill that the whole engine is junked, pieces came out of the oil pan. Not saying the ecoboosts are all bad, but they have a purpose, efficiency and economy, you can pull a lot of power out of them yes, but you are riding the tolerances very hard, with a larger displacement such as a v8, you are spreading the power and stress over more cylinders, more rods, a larger crank, thus you have much more room on the table to work with before shit goes off the rails. And generally, if something goes boom, it goes boom much bigger and worse, when you have a bunch of boost feeding into it.