Wow, that IS pretty rich. You could get a tune. Or even a handheld tuner gives some adjustability for fuel. With your mods, you would probably be better off getting a dyno tune. If I were going to get the car dyno tuned in our area, I would go to Dynosport in Lincoln. I have a Brenspeed tuner with custom tune loaded on my car, but plan to go to Dynosport and have Dan check it out to make sure everything is ok very soon. I think Dan only charges something like $550 for the dyno tune and X3 tuner.