Jeez, Chad, it was just a thought.

You do make a very good case for the 4L60. I remember having an El Camino with the TH350, and I just assumed that the TH400 would be better, I didn't know that it woudl take more power to turn. But when I think about all of the 396's, 427's, 454's matched up with the TH400, that makes perfect sense. Better yet, abunawafff might just be better off if he has California Performance Transmission build him something custom.
