Did everyone have a chance to watch the video?
It's a long one and alot of ground is covered.
Much is for all out Drag Racing Unlimited Normal Normal Aspirated and they do cover Power adders also.
Working g with Extreme high power band 10,000- 11,000 rpm but we can apply to Street Pump Gas Engines 1500-6500 Rpms most often built here in the past.
Cylinder Head and Intake Porting Full Race and applied to a Street engine does work what I did to m my 1976 455 based engine.
Its arguable what is Full Race Porting but I call it 50-60 cfm more flow potential delivered into the engine used 100% and try and get it exhausted 100% the cylinders on blow down when the exhaust valve opens.
Some Factory heads like Pontiac V8 (I went 60 cfm more than stock intake side), its possible to port to +100 cfm more.
Big Block Chevy is a Fantastic Candidate too.
Small Block Chevy Most often best to start with an Aftermarket Aluminum or cast iron head so you have latest designs to port with.