Nitrous?
I sprayed 200 wet to a stock replacement for a long time. I think since you are splitting it into stages, it might not be that bad. Over 200 is always a crapshoot when it comes to a stock bottom end.
I'd say the pistons are what will break... hyperuetectic is not going to be very forgiving if there is ANY detonation......
I'd say run some C16 in it and hope for the best...... with that fuel you're unlikely to have detonation..... pull a bunch of timing as well....
I'd say run some C16 in it and hope for the best...... with that fuel you're unlikely to have detonation..... pull a bunch of timing as well....




