thinking of this set-up

[INTERNATIONAL7.3]

1)stock
2)65 hp tow
3)80 hp dd
4)100hp performance
5)140hp xtreme

any comments? i dont tow much, only small inclosed trailer

2000 7.3

[F-127]

Good choices. You could throw in a 6th position, I don't think you'll regret the extra flexibility. Also, stock and anti-theft calibrations are free, just in case you didn't know. Maybe a high idle?