Any chance you can edit 318willrun's drawing to illustrate the "laying back"? Having a hard time envisioning what would be happening there.
My intuition is that you would want to start that turn on the short side earlier in order to give the air more time/distance to get around the corner. The shape of the radius would be important too. That would mean moving the beginning of the curve towards the entrance of the intake port, but there is usually water under there and you can only go so far. Am I even in the ball park?