Dave, ummmmm, you do realize that, "That" post you quoted is 7 years old right? There is a few threads in the racers forum that are "Stickied" up top that are loaded with information and parts used on how they did it to get there.Roller cam??? Called some places no luck. comp,cran please inform me where to find this... Also what kind of Pistons ya using thanks Dave
You could also start a thread of your own on your engine build. And ask questions there.
Best of luck