Yeah, that was the point of my post. I actually ran that GT 500 again, and he said all he'd done was take it back to the shop and had them retune it, and he pulled me by a car length consistantly....even though he had a passenger and slipping clutch. Maybe it just wasn't running at 100% for the longest time or something.
And yes, it's 12whp not 120....I think you may have been thinking what it'd take to overcome 1000lb disadvantage?