more pronounced intake pulses seem to be better at drawing fuel from carbs. more pronounced "draws" caused by less frequent and sharper "draws" from an equal sized but fewer cylindered engine will enable better slow speed performance from a carb, which is where a larger carb is usually faulty (phillip smith's discussion of the tri-carbed Bristol six with its differently jetted carbs).
Same principles, in reverse, apply to turbos. more spin from less smooth exhaust pulses than from smooth steady pulses. I believe these ideas (or perhaps creative thinking)was basically taken from one of Hugh MacInnes turbo books, or maybe from Phillip Smiths Intake/exhaust book. Thats my take.
