That is a beast you do not want. Very few parts for them and they give them away at Ford shops here. On the other hand, I did see a "Budget Build Up" series on how to make horsepower on the cheap. A 400M was picked because they are free and if you can home port them yourself you can get a 300hp and 450+ ft/lb torque lump that doesn't want to rev beyond 4500-5000 RPM, but it is cheap. Of course, a cam would help out but that went over the budget!