I'm pretty familiar with the 4r100s strengths and weaknesses so hopefull that's whats in it. We were just going to go ahead and install as-is for now, but a friend of a friend said that he's seen the light-duty tune on a 4r100 go belly up pretty quickly at 400 hp. At least we know that there are plenty of hi-po options for it. I'll ask some questions over in the tranny forum for the rest of that discussion.
Any other ideas on the electronic side of this swap? computer? gauges? Will I need the cobra gauges? Is it the same computer with different tuning, or a whole different animal?