what's the highest stall for 904 TQ from factory

this is right up my alley lol i have use them for years .( about 40 years) i used 170 /6 there ok 225/6 trk convertors there better but getting hard to fine in the reman warehouses use to get them for 35 to 40 dollars a bit more now ............. i use to an still do have a few on the shelf .. they last a few years but i break transmissions from time to time.. about 1800 from a /6 truck converter is the best i had .. mild hdy cam they really do work well for the price. note back 1/2 of /6 front half v 8 for 904s lower first gear from /6 an more clutches from the v8 ....about 100 lbs lighter than 727 ... hope it helps