Just scored a Super Six and matching trans

So, I just scored a 1966 Super Six and matching auto trans, now what? Came from a wrecked Baracuda with 55K on the odometer. My 65 Valiant currently has the original 225 in it with a 3 speed column shift. Was planning a 4 speed conversion, but am now thinking about installing the auto trans after going thru it. Going to go thru the engine as well, she's been sitting for a couple years.

So my BIG question, who is making go-fast goodies for these things?

Wayne
Austin, TX