I know that some people think that many so-called fuel saving devices don't actually work, but I just want to get further opinion on this particular one.
I have seen a device which fits fits on top of the carby and is basically a fan which spins freely on tiny bearings.
Surely this will promote fuel mixing and not inhibit air/fuel flow as much as a fixed fan blade setup......?????
If you turn a full a drink bottle upside down and swirl it, it will empty a lot faster than if you just upend it....
Surely it will make SOME difference ?
My car is a 505.