Factory high stall converter

I swapped tc with a friend. His steel crank 727 340, for my A12. He wanted tighter for mileage, the 340 was his daily, I wanted more than stock.
YHis stall went down to around 2000, from 22-2300, mine went from 24-2500 to 2900, behind a stone stock 440 sixpack.
Your results are what an old mopar performance manual stated for stall speeds of various converters. The 340, 383 and hemi all had a hi stall version of the 10 3/4 stock converter. They were the same, save for bigger flex plat to converter bolt size was bigger on the hemi.