I have a Hot Juice, cannot run on 5 yet (180hp 440 ft. lb. ) because of stock clutch which will soon be replaced with a SBC DD. With the clutch I am also installing a fuel pump upgrade which will probably be needed to run 5, also installing head studs. Setting 5 almost instanly slips the stock clutch but the little I feel it feels very strong on 5. Cannot wait for my upgrades to open this truck up.