The following are the books/software I've found particularly valuable for engine building & chassis design/setup. Put them in your racing library and your chances of winning a race or Championship are considerably improved. I invite you to add other books/software that have helped your racing efforts.

"Stock Car Setup Secrets- Advanced Chassis/Suspension". ISBN: 1-55788-401-3. Works for dirt & pavement!
"Engine Airflow -Theory/Testing". ISBN: 978-1-55788-537-1
"Stock Car Racing Engine Technology-Advanced Engine Theory". ISBN: 978-1-55788-506-7
"David Vizards "How To Port & Flow Test Cylinder Heads". ISBN: 978-1-934709-64-1

And the best software on planet earth for chassis work/construction/setup;
Bob Bolles "Advanced Chassis Geometry Software" & "Advanced Chassis Set-Up Software".

-84Dave-