A500 and A518 Parasitic loss

Replaced a 904, didn't notice any performance loss- quite the opposite actually due to the lower gear ratio im assuming, definite mileage gain and rpm reduction, the 318 probably has 200 horse power. 3.23 gears, runs about 2200 rpm at 75
Sounds a lot like my future combo LA318. I'm guessing that you used a stock converter ? Do you recall if it was the stock High stall/ or the stock Low stall ?
Another question. Is that 2200@75mph with the converter in lockup ?