Ratroaster, I would not do it now. I have great respect for the HEMI trans and how they did things in it. Maybe tweaking another similar valve body and installing it would be ok but I would not drill the stock one. Too rare of parts if it's all original. I love the way those shifted on the track and the street.
Can you tell if it has the right valve body still? It was also used in a couple of other cars but they are not easy to track down anymore either.
I did several back years ago and wish now i would not have drilled them.
Thanks again Tom! I haven't got inside it yet but i know it has the original yellow paint marking on the heavy input shaft with the machined groove so I don't think it has ever been apart. I think it's all original but who knows if it has all the original guts. I will find out here soon. I discussed this with A&A and he suggested not doing the TF-2 and just turning up the line pressure a couple turns. I question that to because the Hemi governor was altered to affect shifting points also.