Explains how the EFI system determines engine operation and how the calibrator can change the controlling parameters to optimize engine performance taking engine-tuning techniques to the next level. It is a must-have for tuners and calibrators and a valuable resource for anyone who wants to make horsepower with a fuel-injected, electronically controlled engine.
I got this as follow up on the "How to Tune and Modify Engine Management Systems by Jeff Hartman". Reasonable read for custom map making for performance applications.