@martinitime Found this if you are still looking.

2013 Hennessey VelociRaptor 600 - cars & trucks - by owner - vehicle...
2013 Hennessey VelociRaptor 600. Modifications to the 6.2L V8 include installation of a 2.9L supercharger with an intercooler, performance intake, a retuned ECU, and upgraded fuel injectors. SVT...
losangeles.craigslist.org