Here ya go Joe.It's on the next page under the title Jerry Van Dorpe by Ed.He has 1 picture of  it there.It's not a Allison tractor,it has 2 IH 466 tractor engines,bored out to about 600ci and runs  on Alky.Heres that linkhttp://u15205752.onlinehome-server.com/forums/thread-view.asp?tid=24094&mid=163013#M163013

Heres another link to a photobucket webpage with some more pics of the tractorhttp://s21.photobucket.com/albums/b269/mibond/Wilmington%20GN%202007/

Have fun,Randy.