Nice smooth entry, with at least 5" from the top of the scoop to the venturi's. I run a 4" scoop, so from the hood line to the top of the scoop in the pic is 4". I am not an expert on air flow, but I have a brother who ran the air flow room for I.H. for over 25 years. Even designed his own air flow bench and flowed turbo housings on the side at home for a little extra $. Yes, I can get all my stuff flowed for free. All I have to do is make the adaptor. Aint I lucky