Ive been doing alot of research lately here in japan and so far have come up with not a whole lot concerning a high rpm build in stock displacement of a 3.0L. I want to know if there is any shops out there that build or have built a 9000-10,000rpm C30A with light weight, race balanced engine that can handle high rpms like a AP1 engine F20C. I realize that it would take a really amazing builder to get the balance perfect and costly for internals to achieve such high rpms but would it be possible. For N/A building there are only 2 ways to get more power. Displacement such as building a 3.5L or balancing and engine and raising compression to achieve the same result. Now the high comp 3.0L would have a higher power band and would be good for a track car with alot of weight reduction and balancing and the other would have good low end power for a more stock weight and balance car. I have already gotten most of my weight reduction done to the point that there is almost nothing left to pull out or swap for lighter parts. I dont want to upset the balance so i have been making and replacing stock parts with dry carbon. i am doing custom carbon door panels right now to replace the heavy leather and plastic ones. I want something different then the normal boring to a 3.5L for more power. Since i dont have 25k for a MF308 and whatever else id need to swap it in I was thinking building the C30A. Thoughts?