It is amazing what you can do with proper cam timing control. I've tuned K series motors with K-Pro in the past just shy of 300 wheel hp... NA ! ..

700 is a stretch.. VQ pistons have very shallow skirts for emission reasons.. which makes them frail...

The other shitter.. is that it is still an open deck... No matter which way you slice it.. open deck cylinders will vibrate.. and will eventually lead to failure at good power levels...
welcome back to the 1990's and all the Honda problems.

martin