See the problem I have with that argument is that its both easy to dismiss the cause of disparities between cylinders, and hard to assign root cause. You're right, there can be many causes for differing fuel maps on each cyl. There can even be differing causes for vacuum disparities between the cylinders at idle. But does that mean it's inadvisable to shoot for matched vacuum at idle? I mean, if the differences in air flow are negligible, so be it. But I'm measuring what suggests a nontrivial difference so I'd like to eliminate that variable (and get the most power out of my engine).
2011 Victory Kingpin 8-Ball
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