That's a good video, shows a variety of porting cutting tips Charles uses and why.
Like the looks of that single plane flow design much better than the dual plane he first started his intake manifold porting on. Will be interesting to see the flow numbers on this one when he finishes up with it. Especially comparing the 2 manifold flow tests when he is done with both.
My vote goes for the single plane as the main intake for their 318 build.
