The RON rating of 30% Toluene / 100octane pump fuel mix is around 106 RON.
I decided to use this fuel as E85 is not conveniently available to me and the whole fuel system needs to be changed to accommodate the required fuel volume.
Surok: I dont think this setup is cheating by any means, just optimisation of the engines torque and power production via the available resources.

Some would say using a turbo is cheating.
Mandalay, Toluene at 20-25% concentration gives a 0 knock count, I am using 30%.
I have nearly maxxed the available airflow from the present turbo at 26psi, 40psi and 500rwkw is achievable on this fuel mix with an appropriately sized turbo.
BTW I love your supercharger project, such superb workmanship and design, cant wait for the results.
Thanks for the warning though and the car story was really interesting...