IMO DCOE's are severely overrated. A pair of them cost a bomb, if you look sideways at them they go out of tune, are absurdly hard on fuel economy and are hopeless on a road car. O.k. if you drive with your foot buried in the floor pan, but a set of 39mm bike carbs will flow the same as a pair of DCOE's and will run rings around them in performance and fuel efficiency. I REALLY want to R&D bike carbs and a custom manifold one day