I've actually met David a few times over lunch through a mutual friend. He seems much more dynamic in person. Yes it's unfortunate his videos don't really "flow" so I find them hard to focus on and listen to....even though I am interested in the topic.

FWIW IMO he still talks way too much about the 350 Chevys he built back in the 80's....we've already read his book on those.

I did learn quite a bit from him though.....particularly how important the role Air/Fuel MASS and velocity is in terms of cylinder filling, particularly when the when a long duration intake cam lobe carries wayyy past BDC and the piston is coming back UP the bore.

He's a fascinating guy to talk to, i like heavy theory and he's super knowledgeable and it's especially best when you frame the questions to his liking.