I run 450/400s and a 75mm charger. Gearhead takes care of my tuning. I could jump in the truck and drive across the state if I wanted to. It is very DD friendly, very little smoke no haze cruising and egts in the 7-850 range cruising depending on conditions/speed/etc. I dont DD it because I have another vehicle to drive but I could if need be. Idles like stock, very smooth power, and minimal smoke. I run one tune, and this is the first tune revision, all the time drives great and same tune that runs 7.0s in a ccsb. Just my experience with 400%s
Now would I want to drive 700 miles a week with it... No. For that purpose I would go 300/200s and it would still be a fun truck