Oh I totally agree. I am from the old school,carbs and inches,and have never cared for supercharging,or NO2. But I just don't see a big gain from polishing the Bullitt intake. Due to the valve sizing and camming,the engine is done at 5000 RPM,that's what the dynos show anyway. I have looked into the upper plenum,with the throttle body off,and it isn't all that bad in there. There could be some improvement,if you could isolate that manifold from the heat generated thru the heads.That thing get's hot and stays that way for a good while,even when shut down in the pits. I just got a taste of that 32V HP! that's all!