Have no clue really, only can guess around 9000-10,000#s with trailer?? My 496ci 'Burb pulled it like nothing, 850mi. up and down the PA mountains Power?? Have no clue really ... ((oooOOOO prolly 2 or 3 lumps, rabbit)) 468's with 250B&Ms turned down to like 6lbs I've heard 600+ ? Can I meet you at Zul's when you're done with the dyno?