Here is alittle combo that we put together for everyone. I know there has been alot of talk about the L92 heads on the 4" bore motors, and it seems they work pretty well. You can tell the big valve is a key factor in which cam you use and how you grind it. So we took our time playing around with selection. I wont say the cam specs, but will say they are in the 22x range. This will give everyone an idea of how different the cam should be for this style of head. We think too many spend time trying to go so big, they loose sight of things. So here is a baby cam kicking butt and taking names. It drives like a 224.224 cam in a cathedral head design. We will be offering this setup to anyone who wants one. The only things we added where a slight port match to the intake to heads, ported TB, and underdrive pulley. I dont think the UD pulley added much, but its there. The car was making about 388hp with headers and a tune before.