go to pirate4x4.com and look up toyota bible 2.0.it has everything toyota and then some.your answer will be there.i'd tell you but it's alot of typing.
one of friends has a 97 f 350 crew cab.high flow exh cool air intake and a wildman programmer.wildman makes a programmer specific to your truck and with whatever settings you want.my friends truck on extreme blows black smoke like a dodge and hauls ass.his also has tow,economy(which has 40 or 60...
i'm a chevy guy but those ifs front ends suck ass(i was a mechanic for 10 yrs)and dodge is well a dodge.did you get a chip or a programmer? i know several friends that did programmers on their fords and their **** is fast & smoke dodges and chevs.and of course pull like hell! i can let you know...