Free cam build...

Well, after looking a little closer, there are several of the modern manufactured cams that come very close to matching the timing events of that cam, but they are all spec'd as drag race cams. Build accordingly and it will make some big numbers. Cylinder heads will be everything, especially if you build a 4 inch stroke engine. I would probably go with a 360 to save as much $$$ as I could for proper heads.