well hes right about them being on the edge. you will actually want to pull some timing from the stock timing tables because the factory programs way too much advance to be useable, even with 93 octane. And this causes them to knock and retard timing as a result. So a properly tuned n/a is happier than a factory tuned n/a but certainly not much faster. there could be some slight power gains from leaning out the fueling, because they are stupid rich in OL, but not anything measureable in terms of peak power. more area under the curve could result, though. which is just as nice. a mpg or two might be had, too. thats all with respect to stock engine.