Not every build starts with chasing power. Sometimes, it starts with fixing what’s wrong. This Holden Cruze  came into the shop running extremely rich—sitting around lambda 0.7 , which is well outside where it should be. While that might sound “safe” to some, in reality it kills power, hurts efficiency, and can lead to long-term issues if left unchecked. So instead of jumping straight into adding more boost or throwing parts at it, we went back to basics. Getting the Foundati