Can you precisely measure fuel flow?

You have to be able to account for all the variables, including the weather, to be accurate.

Not real easy with a home brew setup.

I guess with identical loads you could run a precisely measured amount of fuel thru and time how long it takes to consume the fuel with each type plug as a sort of estimate of effectiveness.

Ever notice all the car shows that run E3 replace wore out plugs with new E3's and claim they make a difference, yep, same difference any NEW set of
plugs would make.

Of course the difference is mitigated by ZMax

lol.

crap in a can.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.