The BP285 cam is by nature designed for modified road / track day cars and as such may require additional parts and or light machining of the cylinder head and piston crowns. If you’re running the Power FC you’ll enjoy significantly more mid-range and some additional top end power from either grind. If you have a built engine, ported head, high compression, 9,000+ rpm etc, you’ll probably want to run a Power FC / Stage 3 combination for maximum power.