The tuning part I am not sure, David at DTS has tuned these before so I will let him dial it in. The OP put up over on DF last month where he dyno'd his cousins LLY with a 4094 with stock fuel, Nick's tuning, and RDL up pipes and manifolds and got 587hp and 1095 lb-ft on a Superflow dyno. Either way I think the II 68's, the 4094's, or the 366's are all great chargers for a relatively stock daily driving/ towing/streetable application.