A904 Lock up performance build

I run one out of an 84 diplomat. All OEM with TF2 shift kit, Lockout circuit plugged, TA 10" 3400 converter. 340, high 11s 12.0 car. Street driven and 1k passes.
This is great info and about where I want this car to run to stay in the sportsmen class. Did you just buy a regular 904 stall converter or something special for the lockout tranny?