GER tranny finally dead

[cryotek]

My GER tranny finally died today.  I dropped in a new engine- 452 stroker 600+ HP.  Tranny started slipping yesterday.  today went out for a quick cruise and have no forward gears.  Reverse does work.  I think GER has been out of business for a while and I think no one had any good luck with their stuff.  My lasted so long cause everything else broke on the car first.

SO who makes good TF tranny that will handle 700+ HP???