Nice car and project. This is a great site for information. I too had lots of cars that I built and Harleys too, however this was or is my first 409 also. Which is why I too poked around this site and others for information. And although I have built lots of motors, I chose to have mine built because of not having any prior 409 experience, even though motors are motors, sometimes it best to ask, especially when 409's can get expensive.