How much power out of the stock turbo/stock engine with Full E85

[Fusion Works]

There is a TT class where you are required to use the stock turbo/manifold and mostly stock engine. Most of us have tossed the stock turbo for our street cars but I am wondering if the OEM turbo can make in the 240-250whp range. Yes the OEM turbo will be out of steam for sure, but could it be done using straight E85? Gonna have to compete with the FA24s, K24s, etc.

There aren't a lot of dynos running this type of setup for obvious reason, the OEM fuel system won't support it. Would need more fuel system for sure.