Thats weird on the 94 octane not lighting off? I have been running all kinds of fuel from VP C16, Renegade 110, to our pump 93 octane and they all seem the same.
I need to get my nitrous testing done. I have been so wrap up in waste solvent testing I haven't even been trying to get better fuel mileage. In fact my last logs have been pretty much around 20:1 A/F based.
This is my hot air injection/N2O direct port that now uses the PCV chamber for air or nitrous delivery.
Nitrous bottle and air pump.