can't do the timing thing, 'cause propane fumigation adds timing already. Too much timing would not be good.

 

I get better mileage with the 6X16's than I did with the POD's - at least in town.

Highway mileage in my truck has not changed regardless of injectors, it still gets 18.5 at 70.

Now that I live in the country 20 mpg is not uncommon - which is pretty funny in a truck that leaves a wispy smoke trail all the time.