72 Chevy C10 with updated drive train

[tutone]

You will need to set up your tv cable from your tranny. If you arent familiar with how to do it, winch it up on a trailer and take it to a trans shop. You can burn up an r4 in short order. You will need to run 12v to your HEI and use your old alternator if it has not been updated. That's all I did special on mine and I did the same thing. You will finally have to wire in a lockup for 4th tc lock up. Mine is manual. Google it and explore options. You may not want to do yours like I did so I wont explain it.