904 Leak Finder Help

OK, MoPar land, need some help! The build is brand new, the trans redone behind a new 360 and aftermarket converter! After a few trial runs around the neighborhood & a few weeks of starting & moving no transmission leaks. Took it to get her exhaust put on about a 50 mile round trip, got back & there is a stream of fluid pouring off the right/passenger side of the trans.
Lifted the car and of course there is no obvious signs of the leak every thing looks dry.
Checked the driver side,lines, plumbing, cooler connections & all is dry there also.
It doesn't appear to be coming from the bell housing but I have yet to run the car on the jack stands to try & see where it may be coming from, but wherever it's a lot!
Suggestions please before I pull it down, vent overflow, converter, pump seal?