I was set to graduate HS in 1985 and my Diesel shop teacher was a drag racer. He said if I took diesel I could rebuild my first 440 at school. He taught me to port heads and I got a book on porting from him and a pocket dyno. I will look for both this weekend in my shop. I'm halfway through my read now and nothing I have read so far is changing my initial build plans. Great book, Thanks!!!