Not trying to burst your bubble here. I own a complete library including both of those books and many others. Lots of theory and fundamentals only. You cannot replace actual facts from the flow bench and actual testing with theory.
Like Warren Johnson said some time ago:
If the results do not match the theory, change the theory.
If you want to learn the greatest and latest; get the Motorsports papers sold by SAE. The have the latest technology and results from actual testing in many areas from suspension, engine design and much more.
SAE has a Motorsports Engineering Conference evry year; at the end of the comference you can buy all the papers as a complete set, or specific papers. Unless your are an SAE member, the conference, papers and books have a higher cost.
Check out these links:
Any person that has a technical degree, or a college student in a technical field can apply for membership. Don't try to apply unless you have a verifiable technical degree; most schools do have an SAE Chapter in campus and they will check your information and background.