Cold air intake VS. Individual stacks? (ITB)

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itbs with properly designed airbox and a big enough feed pipe will be superior to open filters in the engine bay

look closely at the McLaren F1 engine above

those surface area calcs are bunk, remember that one cylinder will breathe at a time, so the surface area of the single throttle plate is fine, ITBs work by allowing pulse tuning/ tuned lengths. however with a 90 degree v8 the pulse tuning doesn't work as well as something like a ferrari v8 with a flat crank