the latest issue of DIESEL POWER has a cover story that features a "CUMMINS KILLER" ,a 1500hp powerstroke.
so I went all the way back to page 162 to find a competition pulling truck called "double overtime". It is a BIG dollar purpose built vehicle that is "competitive with the Dodges". it also has an extremely massaged custom engine. The part I liked the least is there is no proof other than the owners say-so that the motor makes 1500hp! But it's in print so it must be so. Funny ,the very next page has an ad for "the worlds fastest powerstroke" @ 10. 86 & 124. 5mph huh... 

