we had a f450 dualie with a utilitie bed/welder/air compressor/ cutting torch / a billion tools on our work truck here at the railroad... if you wadded it trying to get up an go it would do that 3-5 times before it would ever get out of first gear it was retarded!!!!!! that was the only 6.0 i have ever driven and my opinion on them was they where a slow POS! untill i found this site
oops didnt see your was a 7.3 I duno sounds liek the same thing tho
<edit>