Hey I am very new to the Honda scene. I just got a 1989 Honda ef sedan. It has adjustable coilovers and a no name cat back exhaust. It has a d15 non vtech sohc engine with 5 speed. Head is brand new and lower end has 70k on it. I am a trained automotive technician but have never built a Honda before and am wondering what is the easiest and best way to get more power out of this engine? It is going to be a daily driver so I don't want to deal with swaps and all that but this engine is kinda gutless right now. Any help would be greatly appreciated thanks.