[justa6]

First I'd mention to Tom that if he looks at the labels of "Octane Boosters" they usually say their product will improve octane by a number of points. The points they talk about are "tenths" of an octane. Toulene and Xylene give you the real deal but they need to put in at ratios of 10% or higher. !0% makes 93 octane go to around 96 or 97. So a 12 ounce can isn't going to do much.

Besides my Cobra I've got a Buick Turbo Grand National. The car has a KNOCK DETECTOR that gives a visual reprentation of what the knock detector on the motor is hearing. And let me tell you when a motor "pings" at 20 lbs of boost it sounds like the pistons are being hit with a sledge hammer. The Toulene/Xylene works well. However, the Alcohol injection system works even better.

So the Grand National uses either Race gas or Alcohol at the track and Xylene/Alcohol on the street. The Cobra uses Xylene or Racing gas.

By the way my compression ration on the Cobra is 11 1/2 to 1 although with the Aluminum heads and very turbulent combustion chambers its not as bad as it sounds. The car can run OK on normal Premium I just don't "push it".

Remember, ALWAYS mix the Toulene/Xylene in a can filled with Premium BEFORE you put it into your tank. And I wrap towels around the filler so a spill doesn't get on the paint.

Hope this helps,

Regards,