new converter?

73 swinger built 318, a998, 3:50 gears, 28" tall rear tires... 9.8:1 C/R..340 m/p cam , 4bbl, air gap intake, still has a/c not used, and power steering, went to manual disc brakes, removed the power unit.
will be rebuilding another transmission A904 1973 model.. thinking of a mild stall converter... anyone out there running one in a904? was thinking @2000rp. is a street car... with some playtime once in a wile.... any thought of what works well?, brands? everyone says 2500 rpm but maybe to high for daily driver? just want a little more flash for the cam idle...