Trans cooler questions

Look into 'Tru-Cool' transmission coolers. Same stacked plate coolers as the B&M supercoolers, but less expensive.

Tru-Cool LPD Transmission Oil Coolers. Protect Your Investment. | Tru-Cool
Using a M7B on my 408/727 with a 4100 flash converter. Keeps the tranny at engine temp at the track and 100+ days on the street.