Before I read the warnings about using Teflon in and engine as a lubricant, I tried the "squirt it down the intake while the engine is idling" with a product that was supposed to be the ticket for go-cart engines. I did this with my first BGX. Before and after tach readings were identical though the high speed needle wasn't as responsive. The end result was that nothing good came from the experiment and it took about a gallon of running before the stuff worked it's way out of the engine. BTW, this was done with the product rep looking over my shoulder to be sure I performed the treatment correctly.

John