I would suggest contacting Bow Tie Overdrives in Hesperia California. I have one of their 2004R transmissions in a Chevy powered '32 Ford roadster.
The 700R4 and 2004R will self destruct very quickly without the correct throttle-TV cable geometry. Bow Tie provides information, hardware and very detailed specifications for hydraulic pressure checking to confirm correct settings.
I have more info if you want it.
[email protected]