The Fast isnt exactly in my top ten, neither is a torquer....but to digress, I'd say probably 70 percent of fitech units in the field are on dual planes.....a fitech or sniper simply "doesn't care". We send these out the door installed on engines all day. And I can tell you, none of them have single plane intakes, and none of them have any issues in the field. I fully acknowledge the thought process of an open spacer to equalize the sides, but I have yet to see it really matter.
