Glad to hear that. Yes, the vacuum advance is a very significant part of the economy for an internal combustion engine. Vacuum is a very good and sensitive indicator of the load on the engine. And lightly-loaded engines can handle a lot of ignition advance. So, coupling those two things works out very well.

Thanks for the update. That's very good MPG.

 

Thanks Gary. I just modified my previous post to mention that's Imperial gallons, not US.