Edlebrock has a new supercharger for the 6.1- the E-Force Supercharger. It is basically an Eaton TVS supercharger, of 4-lobe assembly design, coupled with an inverted Edlebrock intake manifold with 12" runners. This slick design takes only 2 hrs. to install and increases the rear wheel horsepower of the 6.1 from 365 hp to 470 hp. It also inceases the torque by 102 ft/lbs. The MSRP is $9,446, but the discounted price is $7,085 (uninstalled). Stangs and Camaros beware! http://www.youtube.com/watch?v=_rAOXP91PUA
$7k for 100hp isn't the best bang for the buck, but at least it's making decent power now to push that 4,100lb body. I'm curious if they sell different sized pulleys to up the boost? May need to go forged pistons unless they already are.