So I did a thing over the last few days...
Having the MAP sensor in one of the runners is a fundamentally bad idea because its readings get screwed up by resonances that are created in the runner as the valves open and close for that cylinder. The erratic readings created are the reason Delicious made the Dbox; it is just an electronic low pass filter. When it works it is fine, but it can cause a number of issues.
I welded up a small aluminum box with a vacuum nipple on it (it was my first time welding aluminum with my TIG and I clearly need to work on it). I mounted the MAP sensor in the box, plugged the hole on the runner with the stock MAP sensor and then connected the box to the port that normally goes to the bypass valve (I have my valve teed into the brake booster line so that it only sees vacuum).
These are two WOT pulls before and after, you can see how much better the MAP signal is and you can feel the difference in the seat.
