I find this post most interesting. But, I had to raise an eyebrow when the spark plug wires where mentioned. The plug wires sit directly on top of the engine mount bushing cap don't they. The reason I mention this is because when I had my car dyno tested, I couldn't help but notice just how much the engine moved under acceleration. If you place this channel between the two runner ends, it may torque the entire intake system when the car is under acceleration. This new channel would act like a torque bar, and when the engine moves under acceleration, it would catch on this motor mount, which when combined with the torque jerk of the engine, will act like a prybar ... not good. I would check and double check clearance issues!
