I am not doubting the dyno or the power you made, what I'm saying is that the diesel mixture to the fuel did not increase the octane of the gas/diesel mixture, it slowed the speed of combustion allowing you to run more ignition lead. Diesel has a horrible octane number, those darn diesels spend half their life knocking.

Now guys can made insane power by adding propane to their diesel engine by doing just that, meaning enhancing the octane value.

1953 Chevrolet 3100
261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done
In the DITY Gallery
Video of the 261 running

1964 GMC 1000
305 Big Block V6, sm420, the next cab off restoration