I don't get why there are not more. I started using a D1 ProCharger on my 440 in 1999. I progressed to turbos and have not owned a NA performance car since. Current cars are a 71 Demon w/ 477 Hemi with 88mm Garrett turbo and a 2012 GT500 with a 2.9 Whipple. At least the people with the modern Mopars are receptive to forced induction.