When Jim was satisfied with the tune, he cranked up the LS2 and made a dyno run. The first ones were in the high 300 to low 400-horse range, and a bit more tweaking got him in the sweet spot. Our Goat ended up with 432 horses and 400 ft-lbs at the wheels. A bit low for the mods, we thought, but since the tune was spot-on, we proceeded with the nitrous pulls. | 
Here is the LS2 Goat's final spark table. | 
In a previous nitrous story, we strapped a 100hp Nitrous Express kit to the then-stock Goat and made 447 to the wheels. With all of the current mods we expected a big number, even de-tuned for a 75 shot. However, we ran into problems during testing: a wiring problems prevented us from heating up the bottle, and something was screwing up the master arm. When we did get a pull in with lower bottle pressure than we wanted, it went way lean and mustered 490 rear-wheel horses. |