It also has that same effect on your fuel pump which is why people run em'....
I was just thinking what if you had an older alky pump that needed to be rebuilt soon and was starting to drop pressure.. The added voltage could help in that case depending on how much drop your pump was seeing...I guess in the case of a new alky pump the added voltage would be possibly to aggresive maybe requiring you to turn the knob down a bit!! Also not everyone running a volt booster is seeing the same voltage at WOT close maybe, but not the same...Now take the guy with the older alky pump who is seeing voltage on low side for running a v. booster and all of sudden the volt booster is no longer a hendrence.....I suppose what I'm getting at is with most of this car stuff we deal with different variables thus most of us see varying results....IDK probably over thinking the whole thing???