I was curious and internet research could only take me so far. What is the best engine I can get for my AE70 that bolts up to my T50 transmission? I like fuel economy bit I love power more. I was looking at the 4age but I am not sure if that's the best choice. I am also open to turbo kits if they are common on the engine. Also I am currently running a 3tc with 230xxx miles on it. Appears to run well, but for how long?