Very High Octane

I own a 1990 Buick Century with a 3300 in it, I was wondering if any harm may arise from my dad putting TWO bottles of 104+ Octane Booster in a half tank of 93 octane gas. I have noticed that the car has been running a whole lot smoother and such but I'm worried about burning a hole in the top of a piston or fryng the rings outta it. He told me he wanted to do this treatment to it about 4 more times and then it should run like new. I have a very small idea about octane levels and such but any help would be appreciated!

It shouldn't hurt anything but I would take the car to the gas station and fill the tank. I am sure it runs a whole lot smoother with that much octane booster. Once you fill the tank it should lower the level somewhat and no harm should come to the engine. I have to ask though, why does your father think this will bring the car back to new by doing this? All he may do is damage the engine not restore it. Fuel injector cleaner will do more to clean the engine than the octane booster.