dude whats your problem with archie? i called him about the conversion and he can keep all your factory equipment operational, including the gauges, which no one else is able to do. he is straight foward, does great work, and im most likely going ot have him do my conversion for an ls2 and t56. i keep all my factory equipment, and the power to go with it. dyno number are not the fault of who is doing the install. all i know is the solstice typically losses 15% power, so if the engine is putting out 400, keep in mind id be putting an intake and full exhaust on it, and retuning it, i figure ill be at a strong 475 so less the 15% thats around 400 to the wheels give or take. i will be dynoing the car when i have it tuned by slp.