Hi, with an intake like this one, where the runners are like long hoops (I don't know what it is called obviously) do the runners I have circled get reduced air flow being at the far end from where the air is entering? These are the openings for the full length, this has a dual length setup, but when the top is on, the valves face down, and air entering them has to do what looks like a 300 degree sharp and short turn straight down towards the cylinder heads and a straight run to the valves. When the valves are open air can flow through both routes
This currently has a 75 or 76mm throttle body letting air in via a 90mm opening on the left of the picture, and I am thinking about fitting a larger throttle and enlarging the opening.
Dual length intake runners and air flow
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