If your Truck or SUV sports the Gen III LM7 flavor of the 5.3L V8 Engine… you will enjoy reading this article of how to obtain better and higher performance from these ubiquitous motors and improve your understanding of why these “Plain Brown Wrapper” V8s may even have some decided advantages over many of the later Gen V Engines… ergo… Not EVERYTHING that is “Newly Engineered” turns out to be a BETTER idea:
http://www.onallcylinders.com/2018/...-advice-for-lm7-mods-to-maximize-performance/
http://www.onallcylinders.com/2018/...-advice-for-lm7-mods-to-maximize-performance/