Just got the Truck tuned on chassis dyno (Dynojet 224X) . 290Ftlbs @ 2750, 308 @3800, 290@4500. Atmos. loss @ SAE30 that day. I was told Drive train could be upto 20% additional loss. So I guess that a 616 Ftlbs Tq at the crank. Going on a mountain drive this weekend to see what the loaded (2200lb camper) grunt feels like. Should be sweet! AFR's and EGT's look perfect in local driving.