Yup and that's part of the reason for camshafts that have 5&7 swapped on the firing order. .....but I honestly think that while in some cases, it may benefit, I think for the most part, it's splittin hairs.
But that swap just moves the issue to #2/4 ports so I cant see how it fixes the problem . Visard said the swap helps minimize harmonic vibrations but he has seen no real proof of that .
