quick 318?

With the 2.02 valves, I hear people mention valve shrouding. I've heard some say it wouldn't be an issue. I don't know because I've never tried it... Only read about it.

For camshaft selection, I picked out a Howards for my Street/Strip purposes. I may step it up in size depending on how things go.

http://www.summitracing.com/parts/hrs-711915-12/overview/make/dodge

Aftermarket casting? Heads from Hughes Engines would fall into this category?