So, sps, what you're saying is that you've introduced a variable vacuum leak?? I don't understand the "pull a little vacum off your float bowl vent" statement. Then later, "vacum can be pulled from any outlet".
I dunno...there's only so many btu's in a gallon of gasoline: energy is energy, power is power, and work is work. They're all physically and mathematically related. Unless your vacuum pulling magically increases the efficiency of the combustion process 50% or more, it just doesn't add up.
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