Just had some DVDs sent over, Sean Hyland 4.6 Ford Engine Rebuild. In this very instructional DVD there is a good bit on how cams are dialled in, it is also very good if you want to see how important good practice is when building engines. We work very closeley with Sean and modified all the SVR quad cam engines for him which included doing the cam setting on 41 engines before they were fitted to the cars. We in also worked with him in Canada to build our ZT520 race engine and he came over here to work with us on the Zt400 Supercharged engine. If you want to know about building engines this is the DVD.