Thats the AED Supercharger kit. Allen Engine Development or something or other. It was a nice kit but not cheap. Used an Eaton M90 and was intercooled. More popular with the Tbird/Cougar crowd much like the SVO/Roush kits and even saw a few on explorers.
I think they had an upgrade option that got a more efficient TVS style blower towards the end of their existence. IIRC they went under a few years back.